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Best 15w40 diesel oil 2018 – [Buyer’s Guide]

Last Updated December 1, 2018
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Willard LawsonMy name is Willard Lawson. I have been a freelance writer for 20 years, focusing mainly on technology related topics. One of the most important sections in the article – the comparison charts for best 15w40 diesel oil in 2018!

I’ll brush up on how to choose the best 15w40 diesel oil and examine things like materials, quality, and weight. You see I’m an average member of the public just like you and the main reason I decided to publish a review website on 15w40 diesel oil is because I was looking for one not so long ago.

Best 15w40 diesel oil of 2018

Whether you’re looking to upgrade your comfort, style, or accessibility, we have picks to fit a variety of needs and budgets. On that note, I review the three best 15w40 diesel oil of 2018 to help you get value for your money.

Now, let’s get to the gist of the matter: which are the best 15w40 diesel oil for the money? Simply review and buy them.

Test Results and Ratings

Rank №1 №2 №3
Product
Total 4.8 4.5 4.3
Ease of use
4 points
4 points
4 points
Size
5 points
4 points
5 points
Performance
5 points
5 points
4 points
Price
5 points
5 points
4 points
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 15w40 diesel oil by the price and buy from the one who will offer the greatest discount.

 

 

№1 – Castrol 06241 EDGE Extended Performance 10W-30 Advanced Full Synthetic Motor Oil

 
Castrol 06241 EDGE Extended Performance 10W-30 Advanced Full Synthetic Motor Oil

Pros
15,000 miles between drain intervals guaranteed*
Recommended for severe applications such as towing and hauling, high performance driving, frequent short trips or idling, dusty, humid or extreme temperature environment
Engineered with fluid titanium technology that offers maximum strength under pressure
Cons
Literally no flaws
 
Total:
4.8

Why did this 15w40 diesel oil win the first place?

I don’t know anything about other models from this brand, but I am fully satisfied with this product. The rear part fits perfectly! It is mounted really tight and reliable. I am very happy with the purchase. It is definitely worth its money. The product is top-notch! The product is very strong. Its material is stable and doesn’t crack.

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Ease of use
4

4star

Size
5

5star

Performance
5

5star

Price
5

5star

 

 

№2 – Castrol 06243 EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor Oil

 
Castrol 06243 EDGE Extended Performance 5W-30 Advanced Full Synthetic Motor Oil

Pros
15,000 miles between drain intervals guaranteed*
Recommended for severe applications such as towing and hauling, high performance driving, frequent short trips or idling, dusty, humid or extreme temperature environment
Engineered with fluid titanium technology that offers maximum strength under pressure
Cons
A little bit expensive.
It gets scratched easily..
 
Total:
4.5

Why did this 15w40 diesel oil come in second place?

The design quality is top notch and the color is nice. Seems that the material is good. It has a very beautiful color but I don’t really like the texture. I really liked it. It is amazing in every aspect. It did even exceed my expectations for a bit, considering the affordable price. I like this product. For such a low price, I didn’t even hope it to be any better. It’s decently made.

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Ease of use
4

4star

Size
4

4star

Performance
5

5star

Price
5

5star

 

 

№3 – Mobil 1 112786 15W-40 Delvac 1300 Super Motor Oil – 1 Gallon

 
Mobil 1 112786 15W-40 Delvac 1300 Super  Motor Oil - 1 Gallon

Pros
Excellent soot-viscosity control enables greater engine efficiency, long engine and oil life
Excellent thermal and oxidation stability helps reduce engine deposits and sludge build up to keep engines running reliably
Enhanced TBN reserves improves corrosion protection and extends drain intervals for both new and old engines using either low (500ppm) or ultra-low (15ppm) sulfur diesel fuel
Cons
Not suited for novices.
The handle could be of better quality.
 
Total:
4.3

Why did this 15w40 diesel oil take third place?

I liked the design. We’ve been using it for 2 months and it still looks like brand new. This price is appropriate since the product is very well built. The material is incredibly nice to the touch. It has a great color, which will suit any wallpapers. It is inconvenient to use due to the size. I am going to get something different next time.

banner2


Ease of use
4

4star

Size
5

5star

Performance
4

4star

Price
4

4star

 

 

15w40 diesel oil Buyer’s Guide

If you keep the before points in mind, you can easily go out to the market and buy 15w40 diesel oil, 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.

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.

Pennzoil 550040863-6PK

Quart – when it comes to synthetic oil, Pennzoil is the name that many people trust. I mean, this brand isn’t the official Ferrari oil supplier if their performance is a bust.

So it is not surprising that they came up with one of the best synthetic oils in the market today. The 550040863-6PK is packed with goodness that will only give your car’s engine the best performance yet.

This is because this product is formulated with PurePlus Technology that enables lower viscosity even if the temperatures are as low as 1degrees. This then reduces the effort of your engine by pumping the oil when the temperatures drop.

In comparison to other brands, the Superior Viscosity Control of this oil performs better especially in extreme severe oxidative conditions. It also protects your engine longer and offers faster flow of oil when temperatures go on extremes.

Mobil 94005W-30

For our second choice, check out Mobil’s synthetic motor oil, Mobil 94005W-30. If you want something that can be used in diesel powered trucks that uses CD, CF or API oil then this is the product that you need.

For one, Mobil is versatile and can be used in turbocharged vehicles as well as supercharged gasoline. It can also be used in SUVs, trucks as well as other commuter vehicles. This is generally the best choice for vehicles that require a 5W-30 viscosity synthetic oil.

When it comes to protection, this synthetic oil performs really well. It helps in keeping the engine of your car clean and aids in its performance.

The SuperSyn technology is an anti-wear technology that helps in protecting the engine even in the most extreme conditions. The viscosity of this oil is also excellent and is approved for all general motor vehicles.

Castrol 0624EDGE 5W-40 SPT

For our third pick, the Castrol 0624EDGE 5W-40 is formulated specifically to help lessen volatility while keeping the essential parts of the engine well protected so it can operate more efficiently.

It also boasts a 42% rating compared to other synthetic oils when it comes to removing deposits. It also helps protect the engine against other conventional and synthetic blend oils.

Oxidation is lesser with Castrol and as a car owner, you know what damage oxidation can do. It is also compatible with a wide variety of cars and has met the viscosity standards set by companies like Volkswagen, Mercedes, Porsche and many others.

Mobil 969320W-50 V-Twin

If you are looking for a synthetic oil that is designed for motorcycles then this is the product you need. It works well with motorcycles that have transmission lubricant system as well as conventional engines.

It can also be used in bikes that have separate transmission system and engine. This synthetic oil can provide the lubrication your engine needs as it exceeds the API service categories CD, CF, SH and SG. It has also been tested well for its maximum power and acceleration.

As one of the best synthetic oil in the market today, you will find that it can protect the engine well even at high temperatures where other motor oils cannot. It also helps maintain the functionality of your bike even when you are riding at high speeds or simply sitting in traffic.

Because it is designed to withstand all kinds of weather, this oil helps in extending the fuel economy of your motor. It is also distilled well so it can reach its maximum thermal and oxidation stability.

Diesel Engine Service Life

Heavy-Duty On-/Off-Road: Three times (3X) OEMrecommendation, not to exceed 60,000 miles/600 hours or one year, whichever comes first.

Turbodiesel Pickup: Two times (2X) OEMrecommendation, not to exceed 25,000 miles or one year, whichever comes first.

Competition Service Life: Provides lasting protection for multiple events. Use oil analysis to determine appropriate drain interval.

Gasoline Engine Service Life

Two times (2X) OEMrecommendation, not to exceed 15,000 miles or one year, whichever comes first.

Drain intervals may be extended further with oil analysis.

Refer to your owner’s manual for OEM drain interval recommendations and guidelines for severe and normal service.

Extended drain intervals are not recommended for performance-modified engines, when using biofuels containing more than percent ethanol or 1percent biodiesel (B15) or for 2007-200Caterpillar* C1and C1on-highway engines. Extend drain intervals beyond OEM recommendations in these instances only with oil analysis. Note: 2007-20Dodge**, Ford** and GM** turbodiesel pickups are also not recommended for extended drain intervals when using DHD.

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 Trucks

Atomic Metal Conditioner Maximum Diesel Truck for diesel engine with Stage Revitalizant is an innovative product specially designed for diesel engines of heavy-duty vehicles with oil capacity system up to 30-4qt.

Ultra-modern easy-flowing synthetic motor oil.

XADO Atomic Oil 5W-30 SM/CF is a multigrade easy-flowing ultra-class synthetic motor oil. Manufactured according to the “mid SAPS” technology (mid-level of sulphated ash, phosphorous, sulphur) on the basis of special synthetic base oi…

Oil pick-up that feeds the oil pump.

Oil pump that supplies the oil galleries with the lubricant at pressures ranging from two to six bar depending on engine speed and application.

Oil pressure switch to inform the driver when oil pressure is lost. If all oil pressure is suddenly lost, damage occurs almost immediately.

Additive packages

Each manufacturer adds additive packages during the blending process in order to meet the performance criteria of each product. These additives strive to: • Lower the pour point in cold temperatures; • Slow down oxidation at higher temperatures; • Minimise wear; • Inhibit corrosion; • Protect engine components under extreme pressure.

Mineral versus synthetic

Advantages of synthetic oil over the mineral type • Synthetic has high-quality additive packages, resulting in increased performance under extreme conditions; • It is an cleaner oil thanks to most impurities having been removed; • Free-flowing in cold conditions, as the wax-forming deposits are removed; • Thermal stability is improved at high temperatures, which prevents oxidation; • Longer service intervals are possible owing to the mentioned benefits.

The future of oil

Fuel economy and emissions targets are forcing the viscosity of oil lower to reduce the friction coefficient (0W-1is now possible). Downsized turbo engines have higher internal forces and sump capacities are decreasing, and all the while drivers demand longer service intervals. Then there is the ever-present drive for a greener future, with bio-degradability becoming a key objective.

How Oil Grades Work

The numbers work like this: For 15W30, you need to separate them into ’15W’ and ’30’. The 15W relates to when the oil is cold (think: winter) and the 30 relates to the oil at about 100 degrees C.

But let’s back up a second. Obviously, most liquids get thinner as they get hotter – like honey, or maple syrup, for example. Oil manufacturers use chemical engineering tricks to make oil thinner as it gets colder (or at least, to make it thicken up less as it cools). Obviously the thinner the oil is when it is cold, the quicker it gets pumped around the engine upon start-up. This is good because it reduces engine wear.

What this means is that a 5W30 oil and a 15W30 oil perform exactly the same at 100 degrees C, but the 5W is thinner when it’s cold.

Back in the ’60s

Since the advent of synthetic oils, more chemical engineering tweaks have been possible. Thinner oils are routinely used – today 0W20 oils are used on some cars. The advantage is they get pumped around very quickly, and they reduce internal frictional losses in the engine – but they require much tighter operating tolerances between the bits that count.

Exceptional Protection

This specific oil also offers a wealth of other protections. For instance, it delivers high temperature deposit control. When you’re pushing your vehicle to the brink, it may begin to build up a lot of deposits. This oil will be able to prevent that from happening. The oil also offers ring and liner wear protection. While you’re at it, you should realize that the Premium Blue Oil will be able to help reduce oil filter restriction when dealing with higher levels of soot. The oil also delivers an exceptional oil drain extension of approximately 5,000 miles.

Unplugging the EGR so soot is not recirculated

201trucks: There is no non-tuner delete trick – people have tried and failed by removing the butterfly, removing EGR piston, removing the actuator, unplugging, making butterfly valves with holes in them for more clean air mixture, removing the actuator for butterfly valve, unplug and delete codes, disconnect the pipe coming from the exhaust that feeds the soot back to the air intake – Nothing worked and all attempts lead to derate and then limp mode, or bucking of the truck. Simply put the system is too smart/sensitive. Believe me, I have a 201and have read every thread on the subject spending over 1hours reading to find answers to just that subject to avoid spending money on a tuner right away.

Sims and sensors

Sims: (100ohm not 300) can be plugged into the delete pipe to fool the ECM(computer) into thinking the DPF /“oven” is hot enough and doesn’t need more gas to regen/”self-clean” thus fuel is saved.

Bungs – Threaded female ports on the exhaust for the 0sensors.

Load Test Your Batteries

Did you know that at 3degrees Fahrenheit (freezing), your battery’s cold-cranking capacity is reduced by as much as 20 percent? Like any vehicle, the battery under the hood will die at some point, and winter is the busy season as far as battery sales are concerned. For all vehicles, we recommend testing the health of your battery using a multi-meter and checking voltage readings with the engine off (at least 12.volts), while cranking it over (at least volts), and with it running (13.to 14.volts).

For diesels however, pulling the batteries and having them load tested at your local auto parts store is the best way to check their health. With two batteries in the mix on diesel trucks, a weak battery coupled with a good battery can mask the symptoms of the bad unit. We know, we know… no one is going to pull their batteries and lug them down to O-Reilly’s to have them load tested—they’ll just wait until they’re dead and replace them. The problem with doing that on a 6.0L Power Stroke is that you’ll likely be forced to replace the engine’s fuel injection control module at the same time.

Run an Oil Additive

Stiction is an extremely common injector problem that’s known to plague 6.0L engines. It occurs after oil coking and carbon deposits accumulate within the injector, causing its moveable internal parts (specifically the spool valve) to experience friction during operation.

Once again, the symptoms of stiction are hard cold starts, rough idling and excessive smoke out the tailpipe until the engine oil warms up. Oil additives like Rev-X, Archoil AR9100, and Hot Shot’s Secret have proven capable of alleviating if not stopping stiction issues.

Typically added during an oil change, these oil additives remove carbon, varnish and oil buildup within the oil side of the injector, along with adding a super-lubricant coating to component surfaces for vastly reduced friction. To be clear, stiction solving oil additives aren’t the end-all, be-all. They can’t fix a damaged injector, but they can certainly help quell stiction issues before they lead to irreparable injector damage. A lot of 6.0L owners throw a bottle of additive in at each oil change as a preventative maintenance measure, and most of them never experience a stiction issue.

Test the Glow Plug System

While the glow plug system is fairly reliable on the 6.0L Power Stroke, ensuring it’s in good working order prior to winter’s arrival is never a bad idea (especially if your Super Duty is void of a block heater). After all, getting the engine started in winter weather is the most important goal, and a healthy glow plug system is essential in making that possible.

Checking the system is easier than you think, too. Simply locate the glow plug harness (on each bank of the engine), unplug it, set your multimeter to ohms (for measuring resistance), touch one lead to ground and touch each glow plug lead individually. Readings of 0 to ohms indicate the glow plug is in good working order (no short).

The latter method allows you to test the glow plugs without having to pull the inner fender well and unplug each individual unit. Take comfort in the fact that if a glow plug flat-out fails, a DTC specific to that cylinder will be thrown. Also bear in mind that in freezing temperatures, the glow plugs will remain on for more than a minute as long as the ignition is keyed on (there is no need to cycle the ignition on and off).

 

 

 

 

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 15w40 diesel oil 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 15w40 diesel oil wisely! Good luck!

So, TOP3 of 15w40 diesel oil

 

 

Questions? Leave a comment below!

Chatting about 15w40 diesel oil 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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