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Best oil for diesel engine 2018 – [Buyer’s Guide]

Last Updated September 1, 2020

Charlie OliverLooking for ways to bring your oil for diesel engine to the next level? Then you’ve come to the right place. I’m Charlie Oliver. After putting in 37+ hours of research and testing, I made a list of the best oil for diesel engine of 2018 and explained their differences and advantages.

I will go through the main features and what you should consider when deciding which one to pick over the other. We take a close look at some of the best oil for diesel engine to help you get ripped.

Best oil for diesel engine of 2018

The “Total” indicates the overall value of the product. There’s a product for every kind of user on the list of affordable options below. I am going to specify each good-to-buy feature as much as possible for your references. Many brands have introduced oil for diesel engine on the market. These brands have resulted in a variety for the user. These require that the consumers be well aware of what they are buying so as to make the best choice.

Test Results and Ratings

Rank №1 №2 №3
Total 4.8 4.5 4.3
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5 points
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4 points
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Awards 1
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How to save up to 86%? Here is little trick.

You must visit the page of sales. Here is the link. If you don’t care about which brand is better, then you can choose the oil for diesel engine by the price and buy from the one who will offer the greatest discount.



№1 – TriboTEX Oil Additive: Treatment for Diesel Pickup Engine Oil with Synthetic Nanoparticles

TriboTEX Oil Additive: Treatment for Diesel Pickup Engine Oil with Synthetic Nanoparticles

Contains nanoparticles developed with the DoE, NASA, & NSF.
Reliable! I really like this!
I didn’t notice a single drawback yet

Why did this oil for diesel engine win the first place?

I also liked the delivery service that was fast and quick to react. It was delivered on the third day. I really enjoy the design. It is compact, comfortable and reliable. And it looks amazing! The product is very strong. Its material is stable and doesn’t crack. I am very happy with the purchase. It is definitely worth its money. The product is top-notch!
















№2 – Oil Cooler & Gasket Kit For 1994-2003 Ford F250 F350 F450 F550 E350 E450 E550 7.3L Super Duty Powerstroke Diesel Engines Replaces# 1C3Z-6A642-AA

Oil Cooler & Gasket Kit For 1994-2003 Ford F250 F350 F450 F550 E350 E450 E550 7.3L Super Duty Powerstroke Diesel Engines Replaces# 1C3Z-6A642-AA

Save Hundreds over Dealer Prices
Corrosion-resistant for effective protection against the elements
Rigorous quality control measures have been undertaken to ensure that this part conforms to product standards
Design is a turn off for some users.
Heavier and thicker.

Why did this oil for diesel engine come in second place?

The design quality is top notch and the color is nice. I really liked it. It is amazing in every aspect. It did even exceed my expectations for a bit, considering the affordable price. I recommend you to consider buying this model, it definitely worth its money. The material is pretty strong and easy to wash if needed.
















№3 – D8 RVS Technology engine treatment. For Diesel engines with an oil capacity up to 8 quarts. Restore and protect your engine

D8 RVS Technology engine treatment. For Diesel engines with an oil capacity up to 8 quarts. Restore and protect your engine

Cost savings through better fuel and total economy (up to 20%)
Increased Engine power (up to 20%)
Reduction on maintenance cost and downtime
Need frequent maintenance.
Extremely expensive.

Why did this oil for diesel engine take third place?

It is inconvenient to use due to the size. I am going to get something different next time. This price is appropriate since the product is very well built. It doesn’t squeaks nor bents. Looks great in my apartment. We are very pleased with the purchase — the product is great!
















oil for diesel engine Buyer’s Guide

If you keep the before points in mind, you can easily go out to the market and buy oil for diesel engine, right? No!

How to choose a car engine oil

It may seem like a daunting task, but choosing the best car engine oil is straight forward. Start by checking if it has the starburst symbol which is an indication that the oil is tested and meets the American Petroleum Institute (API) standards. Check for the two letters SL.

Check for its viscosity level that suits the high-temperature deposits.

Check the viscosity level suitable for your car’s normal operating temperature. This should match the manufacturer’s recommendations. Understand the labels like C for diesel engines, SAE (Society of Automotive Engineers).

Mobil 12076Synthetic Motor Oil

The product is easy to use and has an advanced synthetic formula. Made in the USA, Mob 5QT 5W30 Sync Oil helps prevent deposits build-up in the engine and ensures long engine life. It has excellent overall lubrication that protects the engine from wear in many driving styles. It has great thermal and oxidation stability to withstand extreme driving conditions. It performs excellently even at the maximum oil change interval due to its enhanced frictional properties. It works well at low temperatures, hence aid in fuel economy and allows for quick cold weather starts.

Mobil 120760 Synthetic

With the Mobil 0W-40, your engine will get exceptional cleaning, performance, and wear protection. The full synthetic engine oil is designed to keep the engine running smoothly in all driving conditions. It works with the latest diesel and gasoline engines to deliver an all-round performance. It provides excellent performance even in demanding driving conditions.

Castrol 0309GTX 5W-30

The Castrol 0309provides superior deposit protection because of its unique Trishield technology. Get maximum protection from thermal and viscosity breakdown. The car engine oil is designed for ultra-low friction, therefore, improving gas mileage. It exceeds API SN, GF-and ILSAC standards.

Castrol 0305GTX Magnatec

This engine oil is created to protect your engine from warm up and high temperatures and significantly reduce engine wear. Its use leaves the engine parts four times smoother for best performance. As the oil drains down, it clings to critical engine parts.

Mobil 94005W-30 Synthetic Motor Oil

Mobil. It is one of the most trusted within the product category. Even high-end vehicles and racing cars use this oil brand, and this is a testament to its impressive quality.

Shop Tours

Age catches up with all of us, and with these first-gens pushing 30, there are a few things to look out for.

You knew this was coming, but yes, rust is the first thing you should look for when considering a first-gen. You should search in all the usual places – under the carpet, along the aprons, around the lamp openings, across the firewall, and in the bed. Special areas of the truck would be the passenger side, above the windshield, the cab mounts, the frame behind the fuel tank, spring perches, and so on.

The National Auto Auction Association (NAAA) has some rules of thumb regarding rust, which is that any hole measuring a dime or larger must be disclosed, and any thickness of metal with more than 2percent showing corrosion fails inspection. We think the first rule can be a little flexible, as we all know someone who knows how to handle a welder; the second rule, however, is non-negotiable in our eyes.

Get underneath and look for rust. If you need a reference, the National Auto Auction Association has rules of thumb that include: no hole larger than a dime, and no thickness with more than 2percent showing corrosion.

Transmissions for these trucks were either the standard Getrag 360 five-speed manual, or the Chrysler-made Torqueflite A72three-speed automatic. The consensus seems to be that the automatic is an inferior choice to the manual, since it did not have an overdrive gear. Your first purchases for an automatic gearbox should be a fluid and filter change, and then a new torque converter and flexplate to bring new life; for a manual, check for clutch slippage and order an aftermarket clutch if you find it lacking.

We sought advice from a first-gen owner and found Wayne Jones through social media. His 199Dodge Ram had been through a lot to come out the other side looking pretty and performing well, so he had gained some valuable experience in portions of the truck to watch out for, especially where it concerned the transmission.

Trucks with the manual Getrag 360 transmission should be overfilled by a quart to prevent starvation.

Highlights And Upgrades

You’re going to run across many engine bays in varying conditions. Whether dirty or pristine, make sure to look at lines, cables, and wiring as closely as possible.

Depending on your budget, you can get some life out of your truck without breaking the bank. Popular modifications include turning the fuel screw up to its limit, which will result in some free horsepower (between 50 to 70), a cold air intake kit, bigger fuel injectors, and increasing the exhaust pipe size after the downpipe. More costly upgrades involve jumping up to a larger Holset or BorgWarner turbocharger, a new torque converter/clutch, beefier fuel pump, and head studs if you decide to go with nitrous oxide or water-meth injection.

The 5.9-liter Cummins offers some quick, easy upgrades on their own, but also provide for a robust platform to work with when it comes to aftermarket modifications. Injectors, headers, camshafts, and more are all available.

At its core, the 1989-9Dodge Ram with the 5.9-liter Cummins has a lot to offer. For classic looks, the square-body style is unbeatable and can look like a real blast from the past when properly repainted and buffed out. Supporting the aesthetics is one of the strongest drivetrains ever devised, and it will become a project unto itself if you let it happen.


Diesel engines, particularly turbo diesels, provide good fuel economy especially with open road driving – if you do a lot of freeway and highway driving, diesel engines are generally around 20 to 3percent more economical than the equivalent petrol driven car.


You don’t get the fuel efficiency benefits if you mostly do city driving or short trips.

If you only do short trips under 10kms every day you risk damage caused by a blocked particulate filter which can be very costly. The particulate filter collects exhaust soot and self-cleans by burning the soot into gas once the engine heats up as you drive.

Diesel fuel isn’t cheaper than petrol like it used to be, which could negate the fuel saving benefit.

Diesel-powered cars usually cost more than petrol-powered versions.

Diesel fuel nozzles are often greasy, which is why some car manufacturers provide a box of latex gloves for filling up.

Other engines in the line-up included 2.petrol and a 2.4-litre TDI for rear-wheel drive models, with outputs ranging from 75PS to 145PS, the arrival of the facelifted mkTransit bringing some changes to the engine line-up, as well as some sheet-metal revisions and taller headlights.

Ford continued to offer the Mark with a 2.3-litre petrol, while a 3.TDCI with 200PS was also offered on some rear-wheel drive models.

Black Smoke

Black smoke is caused by excess, unburned or partially combusted fuel, or conversely by inadequate air supply to your engine. In either case the fuel-to-air ratio for your engine has been altered significantly. The trick, of course, is figuring out where the excess fuel or restriction in airflow is coming from.

Also, it’s important to understand that in some cases, a little black smoke can be considered a normal condition. Let’s start with that—the possibly normal.

Your diesel engine is equipped with a governor that helps control the amount of fuel that gets delivered to your engine’s cylinders depending on the load your engine is experiencing. The occasional puff of black smoke that may occur when you suddenly push your throttle to the max is really nothing more than the governor shooting some extra fuel into the injectors before the engine catches up and comes up to rpm. With the advent of electronically controlled diesels this anomaly is beginning to fade away fast.

But let’s say the cutlass bearing on your propeller shaft begins to seize, or you run over a lobster pot and wrap the line around your prop and shaft, or you catch a load of sargasso grass in your propeller. Your governor will sense this new heavy load, and will offer up more fuel — and now black smoke will be a part of the picture. The key here is whether the smoke goes away in short order or not. If it does, and the engine climbs immediately to a normal rpm and boat speed seems normal, then the smoke was caused by the over-reaction of the injection pump’s governor to a sudden rapid change in throttle position. Not a big deal. If the smoke continues and engine rpm is lost, a trip overboard may be in order to try and clear the propeller.

The cutlass bearing can be tricky, as it may not necessarily cause excess drag and resistance with the engine in neutral. I had a case once where the excess load only occurred when the engine was shifted into gear. At that point the engine and shaft shifted just enough for the broken flute on the cutlass bearing to flip onto its side and lock that shaft tightly. This of course tricked the governor into sending more fuel to the engine, due to a perception of increased load.

If the black smoke is also coinciding with poor engine performance and/or rough idle, you probably have one or more fuel injectors that are leaking. Unless you have experience in these matters I recommend calling in a pro on this one.

Pentagon Lubricants a customer caring and relation building organisation manufacture the entire range of Industrial Lubricants, Automotive Lubricants, Greases, Marine Engine Oils and Speciality Lubricant products under the trade name – PENTAGON.

The Natural Gas Engine

With environmental conservation and fuel efficiency/costbecoming a greater issue in the industry, there are alternative engines used in heavy-duty trucks. Every year, a greater number of fleets are moving to using natural gas engines because fuel cost is significantly less than diesel or gasoline. However, a downside is that natural gas engines contain 20% less volume of energy compared to diesel engines which means truckers need to refuel more often.For example, 1.gallon of LNG is equivalent to gallons of diesel and 3.8gallon of CNG is equivalent to diesel gallon.

The way in which the fuel is stored determines whether the engine will run on compressed natural gas or liquified natural gas (propane). CNG are not adept for heavy-duty applications so they will not be covered here. Because LNG or Propane is less dense than diesel fuel, it does require a larger tank to store the same amount of energy. There are weight implications that will affect your trucks performance because diesel has the best weight-energy density ratio as opposed to propane. Also, LNG has a short shelf life of days so it is mainly suitable for fleets that are constantly in motion and not idle for long durations.

The Diesel Engine

The primary type of fuel found in truck power units is diesel. Once the ignition is started the cylinders are heated through the injecting of fuel at high pressures. A diesel engine requires spark plugs to start the combustion process.  Once the engine is heated to optimal levels, the accelerator must be pressed and the ignition turned to start the engine. Therefore, unlike gasolines engines, diesel engines only deliver fuel to the cylinders for it to burn upon the start of the ignition.

Cummins Engines is strictly dedicated to manufacturing engines and their diesel engines can be found in all of the big Heavy-Duty Truck Brands including Freightliner, International, Kenworth, Mack, Peterbilt, Volvo, and Western Star. Cummins builds two types of diesel engines for heavy-duty trucks of which are the ISX1and ISX12.

Cummins ISX1manufacturing began in 201and is their latest engine for heavy-duty trucks. ISX1generally boasts the best fuel economy amongst all sleeper cab diesel engines. The horsepower ranges from a minimum of 400 to a maximum of 600. The ISX1is favored by the EPA and DOT. The 201ISX1is equipped with On-Board Diagnostics to monitor and validate ideal fuel emissions system.

Western Star

Detroit Diesel is a dedicated diesel engine manufacturer with its main engines being the DD13, DD15, and DD1DD1is generally considered the optimal engine and is also very common among truck manufacturers. Detroit Diesel is owned by Daimler who also manufacture Mercedes diesel engines sometimes found in Freightliner trucks. Daimler also owns Freightliner, and Western Star.

The DD1is best suited for LTL shipments, regional distribution, and for vocational purposes such as driver training. The horsepower to torque ratio is better in DD1engines than DD1mainly because when brake horsepower (BHP) exceeds 410, there is a sharp decline in torque lb.-ft. The longer the connecting rod is, the greater the depth of the cylinder and the greater the torque. Torque is calculated by multiplying the horsepower with 525/ RPM.

The DD1engine is available in Freightliner Cascadia and 12SD models, Western Star 4900 and 5700XE.

Volvo Engines

Volvo is both a manufacturer of diesel truck engines and heavy-duty trucks. The main engines Volvo carries for its sleeper cabs is the D-1and Cummins X1The D13TC Turbo Compounding engineis suitable for long-haul operations requiring cruise speeds because it captures and harnesses energy that is lost through the exhaust. It also features a low fiction wave piston which increases friction and reduces emissions. Its power rating ranges from 37to 500HP. The D1Engine is featured in the Volvo VNL series in models such as 740 and 760.

Paccar Engines

Note: We did not review Navistar International engines because they are not recommended. If you are considering an International truck, the best we recommend is to buy one with a Cummins engine or upgrade to an engine manufactured by a different company.

Caterpillar (CAT) engines have been very favored amongst truckers due to its reliability but due to new emissions standards, CAT has discontinued making class truck engines since 2010.

When choosing a heavy truck engine, it should also be kept in mind that buying an aftermarket engine is always an option, especially if you prefer features such as the transmission or aerodynamics in a particular truck brand. Adelman‘s carries aftermarket truck engines from most if not all major truck brands. However, it may increase support costs due to commonality issues with technicians and parts inventory depending on your maintenance service provider.

Factors to Consider

Factors to consider when selecting the best semi truck engine includes evaluating fuel mileage, maintenance costs, and hauling power.

Fuel mileage will include assessing things such as storage tank weight, miles per gallon for your particular route, and fuel type.

Maintenance costs are important because they make up a decent percent of a truck’s operating costs. As a result, more common engines such as Cummins which are available by every truck manufacturer will have cheaper repair parts. Maintenance costs can also include the time it takes to fuel your truck because it knocks off hours of service on the driver’s logbook. Therefore, if you’re considering LNG vs Diesel then take this into consideration.

Choosing the best heavy-duty truck engine will depend upon a number of factors unique to your situation and needs. The above information has outlined the key components to consider when choosing the right power unit but it is up to you to make the buying decision.


We don’t know the exact percentage of engine failures that result from lack of cooling system maintenance, but it is surely at least 50%. You need to understand this: Diesel engines operate under a piston compression of around 350 to 550 psi. That is three to four times the amount of a gas engine. This high compression puts great strain on the engine and can build up heat very rapidly (like within 60 seconds) if there is a failure in the cooling system.

Diesel cooling systems are vastly more critical than gas engine cooling systems. Gas engines can suffer from numerous moderate overheats without causing catastrophic damage. THIS IS NOT TRUE OF DIESELS.

Another common cause is failure to keep the cooling system clean. Instead of adding a properly mixed solution of recommended coolant, owners just pour water in, or add straight coolant. Proper ratios of engine coolant are critical to proper cooling and the prevention of corrosion.


One of the weaknesses of water  temperature alarms is that they will not function when there is a complete loss of cooling water around the sensor. The sensor only works when it is immersed in water. For this reason, I strongly recommend that you have exhaust temperature alarms installed. These will function when the others won’t. The cost of having them installed is minimal, and a drop in the bucket compared to the cost of an overheat.

When to Inspect

Engine coolant should be checked every time before starting the engine. That does not mean looking at the coolant recovery tank.

You should NEVER use the recovery tank as an indication of coolant diesel will have at least three coolers: the heat exchanger, oil and fuel cooler — and most likely a transmission cooler. That makes four for a single engine boat, eight for twin. The problem here is that they all need to be inspected and serviced at least annually.

Fuel System 

People often ask us whether they should maintain their tanks full at all times. The answer to this is not that straightforward. It depends on how much fuel you use. It is not wise to allow old and aging fuel to accumulate in your tank. If you top off after short, infrequent operation every time, the fuel in your tank is going to get old. This can foul up your injectors. But so will water. Water causes bacterial blooms in the fuel, and it only takes a very small amount of water to do this. To my way of thinking, you’d be better off with this happening to a nearly empty tank than a nearly full one. For the most part, it’s going to depend on how much of a bacteria problem you have, and whether frequent changing of your filters can handle it.

Aspiration System 

The temperature and cleanliness of the air your engine breathes is very important. That’s why most engine manufacturers are now supplying some kind of air filtration system with their engines, after we’ve complained about engines breathing salty air for years.

There’s no end to the ways engines can end up breathing not only dirty air, but air that is full of all sorts of crap like sand.

Turbo charged engines usually require that the air from the hot turbo be cooled. This is done with an inter or after cooler, take your choice of names.

Not only do these gizmos cool intake air, but they filter it too.

Not by design, but by the same means your air conditioner inadvertently filters air. This clogs the cooler up with a corresponding rise in engine temperature. If your cooling system is already weak, this can be fatal. Yep, you guessed it. Here’s yet another cooler to add to the cost of the maintenance bill. You small boaters, are you really sure you want diesel? Get out the checkbook.

Cumulative Effects 

The demise of most diesel engines is caused by the cumulative effects of improper maintenance and resulting overheats. Then, suddenly one day the engine goes bang for no apparent reason. There’s a reason all right, but it’s the cumulative effect of poor maintenance. For the most part, diesels are very unforgiving of neglect. Oh, I know you’re probably thinking about those boating books you’ve read that talk about how rugged and dependable diesels are. I’ve seen them too. But if you look closely, you’ll see that they are not talking about HI PERFORMANCE DIESELS. They’re talking about those old and banger naturally aspirated engines that develop 1hp. Ninety-nine percent of diesel engines in power boats today can be classified to sit without running them for more than days. Try to operate engines at least every days. Allow engines to warm up, then than 30 days. Long periods of disuse results in serious internal with throttles advanced.   Do not race engines until they are up to normal operating temperature. This is very damaging.

Cheap and Simple

Hitting the market in 1983, the first 3.9L Cummins (known as the 4BT) has been used in everything from delivery trucks to wood chippers. This means they can be found anywhere, and for really cheap. In addition, since the engines require very few electronics to operate, it simplifies the conversion process.

A Bit Old and Kind of Rough

The biggest drawback of the 4BT is that it’s not a modern diesel. In fact, it’s a bit antiquated and unrefined. While that’s not always all bad, for some, the rattle, shake and noise of this diesel will be too much. Also, you can’t simply hook a programmer to a 4BT and voila! you have 500hp.

Can you turn up the power? Absolutely. However, it’s going to take real work and a serious investment of funds to get the numbers into the bragging realm.

Dealer Selection

As gasoline prices continue climb and recreational toys grow in size, truck buyers are increasingly drawn to the powerful, long-lasting, and relatively efficient diesel engines offered in heavy-duty, full-size pickups. Currently, only pickups with a gross vehicle weight rating of 8,500 pounds or higher offer both diesel and gas engines. These heavy-duty trucks are commonly referred to as 3/4- or one-ton pickups. Light-duty, or 1/2-ton, pickups have GVWRs from 6,100 to 8,200 pounds, and all are powered by gasoline engines. Jeep offers the lone exception to this full-size pickup diesel dominance with the ’0Liberty SUV, available for the first time with a trail-ready 2.8-liter/160-horse I-with 29lb-ft of torque and EPA mileage rated at 2city/2highway.

Diesels don’t have the same attraction in the U.S. passenger-car market, where they’re just starting to gain showroom momentum following a high-profile but failed effort in the ’80s. The 197and 197gas shortages prompted automakers to offer diesel engines, with their attractive fuel economy numbers, as a way to combat high gas prices. But diesels quickly developed a reputation for being noisy, dirty, smelly, difficult to start in cold weather, and sluggish to drive.

Haunted by the motors’ unrefined past, American mainstream drivers have shunned diesels. Meanwhile, technology has improved in Europe, where some countries boast that diesel-powered cars make up more than 50 percent of 200new-vehicle sales. Currently only Mercedes-Benz and Volkswagen offer diesel-powered cars in the U.S., and those models accounted for fewer than 30,000 total sales through the first eight months of 2004, according to J.D. Power & Associates. Meanwhile, Detroit sold nearly a quarter-million diesel pickup units in the same time period and should clear 400,000 units by year’s end.

The diesel engine’s traditional advantage has been fuel economy. Since EPA estimates are not required on heavy-duty trucks, however, it is difficult to compare actual mileage between gasoline and diesel models over a certain time span. On average, a diesel engine offers 30 percent better mileage than its gasoline counterpart, but that figure can rise to as high as 50 percent under certain conditions such as constant low-speed driving. Since diesel fuel traditionally has been cheaper to refine than gasoline, it historically has been priced lower. This has meant the extra cost of purchasing a diesel-powered vehicle could be recouped in three or four years. However, the diesel-fuel price advantage is moot in today’s volatile, unpredictable oil market, where diesel-fuel prices can be equal to or higher than gasoline in some areas. Also, diesel engines are now more expensive to purchase due to improved technology, increased demand straining supply, and generous cash and finance incentives offered on gas-powered trucks that widen the price gap. The fuel economy and longevity benefits remain true, reducing the overall cost of ownership, but diesels have lost some financial edge.

So why are diesels so popular in heavy-duty pickups if they’re not saving as much money? Torque.

Gas vs. Diesel

Gas engines may provide more horsepower but diesel engines inherently offer more torque for acceleration and pulling power. All of the Big Three’s diesel engines are rated at near or more than 600 lb-ft of torque, while their biggest gas engine is rated at 45lb-ft. This advantage is achieved through a number of dynamics that differentiate diesels from gasoline engines, beginning with the fuel. Diesel fuel is heavier and carries more carbon atoms than gasoline, therefore it has about 1percent more energy density. Since engines convert heat energy from the fuel into mechanical energy, diesels offer more power and miles per gallon.

Although a diesel operates on a four-stroke cycle just like a gas engine, there are major differences in each stroke: • Intake Stroke: Diesel engines have an open intake manifold, so a full charge of air can be drawn into the cylinders on every intake stroke. Gas engines have a throttle valve that regulates how much air-which is mixed with fuel in proportion to the air-is drawn into the cylinders. In its simplest terms, an engine is an air pump; more air moving through the engine results in more power. • Compression Stroke: Gas engines typically run a compression ratio of 8:up to 10:Diesel engines can run over 20:Higher compression facilitates efficient burning of fuel, hence more power and better economy. Gas engines cannot run high compression because the heat would cause the air-fuel mixture to self-ignite prematurely causing a power loss. • Ignition and Power Stroke: Gas engines ignite the air-fuel mixture with a spark plug. Diesel engines inject a calibrated amount of fuel into the compressed air, where heat from the internal combustion chamber ignites the fuel. With a gas engine, the combustion is more controlled, but the burning process is limited. With a diesel, the instant combustion is more violent, lasts longer (depending on the length of the fuel-injection pulse), and literally pounds the cylinder walls and pistons, resulting in more noise. Diesel engines are also designed to have a longer crankshaft stroke than gas engines. The geometric principles are complicated, but a longer stroke combined with the longer burning results in considerably more torque. • Exhaust Stroke: Both engines are similar in that the piston forces hot gasses into the exhaust manifold. But most diesel engines are equipped with turbochargers that use exhaust gasses to spin a turbine to pump large amounts of fresh air back into the intake manifold. Today’s factory-installed turbochargers on diesels can provide 30 pounds per square inch of boost. Gas engines can hardly handle much more than 1psi, unless they’re modified.

Diesel Myths & Technology

Recent advancements in fuel-injection technology combined with improved engine design have refined diesel operation and efficiency. Many of the enduring myths and annoyances are no longer applicable.

Modern diesel engines are equipped with four valves per cylinder to increase air flow by reducing interference. This configuration also allows engineers to position the fuel injector in the center of the combustion chamber for uniform fuel dispersion within the cylinder. Computers can manage the fuel injectors with such precision that multiple injections of different fuel volumes are made during each power stroke. By introducing a small dose of fuel, called a pilot injection, just a few ten-thousandths of a second before the main shot of fuel, the combustion is “softer” and noise is reduced considerably. A small, third aftershot of fuel can help reduce harmful emissions by lowering combustion temperature. Some engine manufacturers are even looking at fourth and fifth injections to shape the fuel curve and further smooth out the combustion.

Key to programming such delicate fuel events is a common-rail fuel-injection system that supplies fuel at pressures from 2,000 psi up to more than 23,000 psi. Gas engines with electronic fuel injection run at 40 to 60 psi. Older diesels had separate fuel lines from the fuel pump to each injector. The pressure and injection timing were dependent on engine speed, which sometimes led to a fuel-delivery lag at high engine speeds. Today, a common-rail system links all the injectors to a feed line that is independent of engine speed, allowing the engine-management computer to control fuel exactly as programmed by the engineers.

A sophisticated fuel system and advanced turbocharger are just two reasons why diesels are more expensive than gas engines.

Because of the intense cylinder pressures, all diesel components are built to withstand more punishment, and the cooling system is designed to handle extreme temperatures. The high compression ratio requires an extremely strong starter and heavy-duty battery. Manufacturers also know that diesel truck owners drive their vehicles more-J.D. Power and Associates says diesel trucks are driven 2to 3percent more than their gas counterparts-and load them with more weight. Therefore, engine castings are thicker and moving parts such as the crankshaft, pistons, and valves are more robust. All this extra beef means diesels are heavier and more durable, so it’s not uncommon for diesel engines to go 250,000 miles before a rebuild is even considered. On the downside, some maintenance procedures are more expensive. Diesels need about 1quarts of oil, compared to five or six in gas engines, and diesel fuel filters and water separators need close attention. But gas engines have spark plugs and ignition components that need replacement.

Wear Protection

The diesel oil you should pick should not cause damage to your engine. Instead, it should provide your engine maximum wear protection to prolong its life.

Choose the diesel engine oil that is multifunctional and the one you can utilize across a number of uses.

Efficiency : It will also be good to consider how the engine oil will help you to promote more efficient fuel consumption.





How to save up to 86%? Here is little trick.

You must visit the page of sales. Here is the link. If you don’t care about which brand is better, then you can choose the oil for diesel engine by the price and buy from the one who will offer the greatest discount.



Final Word

First of all thanks for reading my article to the end! I hope you find my reviews listed here useful and that it allows you to make a proper comparison of what is best to fit your needs and budget. Don’t be afraid to try more than one product if your first pick doesn’t do the trick.

Most important, have fun and choose your oil for diesel engine wisely! Good luck!

So, TOP3 of oil for diesel engine



Questions? Leave a comment below!

Chatting about oil for diesel engine is my passion! Leave me a question in the comments, I answer each and every one and would love to get to know you better!

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