We are Dodge Cummins Turbo Diesel engine, powertrain and chassis experts and are here to help you achieve optimum performance and longevity from your truck.

You've spent your hard earned money on the Dodge Cummins Turbo Diesel option in one of the most popular and best engineered trucks there is, now don't you think you owe it to yourself to use the very best oil in it? And don't let your local dealership service center tell you that you, you have to use their brand of oil to "maintain your warranty". That is one of the biggest untruths we have heard yet it goes on day in and day out. We constantly receive calls from customers that were told this by their servicing dealership. This practice is not authorized or condoned by the auto manufacturers, but the fact is it still goes on.

How a servicing dealership can essentially tell a customer that they have to use a lower quality oil to "maintain their warranty" is not only wrong but it is also illegal unless they provide it free of charge. There are Federal laws that protect you against this. Please read our Warranty Laws You Need to Know section of this website to learn more.

 

Take a look at the varnish deposits in this picture. These are the results of a severe high temperature deposit test.  The one at the far right is AMSOIL Synthetic 15W-40 Diesel oil and the others are major brand petroleum diesel oils. (left to right: Chevron Delo 400, Cummins Premium Blue, Shell Rotella T, AMSOIL 15W-40). The test clearly shows that AMSOIL keeps engines cleaner longer than other major brand diesel oils do. Which oil would you rather have protecting your engine?

We are here to help you learn the facts and show you how you can use AMSOIL and get a superior product and also increase the performance and add to the longevity of your Dodge Cummins Turbo Diesel plus save time and money. The Dodge Cummins Turbo Diesel is an excellent vehicle and exceptionally well engineered by Daimler-Chrysler and Cummins. In our opinion it is one of the best vehicles ever produced, however there are ways to make the performance and longevity even better with AMSOIL Synthetic Lubricants.

One of the many specific areas on a turbocharged engine, such as the Cummins Turbo Diesel, which can clearly benefit from the use of synthetic oil is the turbocharger.  When a turbocharged engine is shut off immediately after a high speed run, "heat soak" occurs from the engine, and it considerably increases the temperature in the turbocharger.  Over a period of time this can lead to deposits that can block the oil flow to the turbocharger bearings, leading to turbocharger seizure.  Synthetic engine oils that are inherently more thermally stable than petroleum engine oils have been shown to keep turbochargers considerably cleaner than petroleum engine oils.  A poor petroleum oil will give turbocharger seizure, caused by blocked oil ways, in under 100 hours of a severe "heat soak" test cycle.  A good petroleum oil will survive for 100 hours but with considerable deposits and incipient blocking. A good synthetic oil will maintain the turbocharger in almost "as fitted" condition.

Simply changing your oil more often with "3000 mile oil" will not give you all the benefits that AMSOIL offers: You will not get improved fuel economy, you will not get reduced engine wear, you will not get reduced operating temperatures, you will not get extended drain intervals and you will not save money in the long run. Please, allow us to show you a better way. We are here to help you. You have everything to gain and absolutely nothing to lose!

AMSOIL has been in business since 1972 and was the first company in the world to develop an API (Automotive Petroleum Institute) rated synthetic lubricant for automotive applications. They coined the phrase "extended drain intervals" over 30 years ago and have been on the leading edge of technology and innovation ever since then. We have many satisfied customers using AMSOIL products in both their commercial, trucking, fleet as well as personal, family and recreational vehicles.

Specifically for the Cummins Turbo Diesel AMSOIL engineers and manufactures a 15W-40 Synthetic Heavy Duty Diesel and Marine Motor Oil (as well as Series 3000 5W-30 Heavy Duty Diesel Synthetic) that when used in conjunction with AMSOIL Absolute Efficiency EaO-80 engine oil filter will allow you to travel 25,000 miles between filter changes and approximately 25,000 miles  between oil changes. If you use oil analysis you can usually go longer than 25,000 miles on the oil.  Other AMSOIL benefits include reduced sludge and deposit formation, extreme temperature protection, improved fuel efficiency and rust and corrosion prevention and it does not void any new vehicle warranty. AMSOIL Synthetic Lubricants meet and exceed all API rated and Dodge specifications.

AMSOIL Premium API CJ-4 Synthetic 5W-40 Diesel Oil (DEO)

Maximum Fuel Economy and Extended Drain Intervals in Ultra-Low Emission Diesel Engines. AMSOIL Synthetic 5W-40 Diesel Oil (DEO) is the premium choice for API CJ-4 emission-quality diesel oil required by model-year 2007 and newer diesel engines.

AMSOIL Premium API CJ-4 Synthetic 15W-40 Diesel Oil (DME)

Superior Shear Stability and Extended Drain Intervals in Ultra-Low Emission Diesel Engines. AMSOIL Synthetic 15W-40 Diesel Oil (DME) is the premium choice for API CJ-4 emission-quality diesel oil required by model-year 2007 and newer diesel engines.
 

Note: If you use another brand oil filter other than AMSOIL, change the oil filter at manufacturers recommendations.

The other option is to install an AMSOIL Dual Remote By-Pass Filtration System.  With this system you only change your oil when oil analysis indicates.  The AMSOIL Ea full flow filter is changed at 25,000 mile intervals and the by-pass filter is changed at approximately 25,000 miles for normal duty service.   The AMSOIL 15W-40 Synthetic Heavy Duty Oil  or the Series 3000 5W-30 HDD does not break down like conventional petroleum based motor oils, is much more shear stable and does not have the waxes, paraffins and by-products that come out of crude oil that is pumped from the earth.

We have many customers with years of service and tens of thousands of miles on their Dodge Cummins Turbo Diesels with no oil changes. Laboratory oil chemical analysis every 15-20,000 miles indicates the oil is perfectly suitable for continued service. Other customers have traveled well over 100,000 miles and oil analysis still indicates no oil change necessary.

Oil analysis provides a big return for your small investment by extending equipment life by preventing premature component failure, reducing maintenance costs by eliminating unnecessary component changes and a decrease in downtime due to premature scheduled maintenance as well enabling calculation of optimum drain intervals that will reduce lubricant costs and assure maximum equipment protection.

Your average regular full flow engine oil filter will only remove wear particles down to the 20-25 micron range. The filter cannot remove finer particles because the oil must be filtered quickly while removing most of the particles present in the oil, except the particles below the 20 micron range. A study completed by Federal Mogul Corp. analyzing over 7000 main and connecting rod bearings concluded that 60% of all engine wear occurs in the 5-20 micron range. This is why no matter how much you change your current full flow oil and filter, regardless of brand, that you still are not removing the particles that cause the greatest wear in your engine.

AMSOIL has a complete line of synthetic oils, greases, transmission fluids, gear lubes, Two-Stage foam air filters, by-pass and full flow filters and filtration systems designed to extend the life of your vehicles and equipment and save you time and money. In addition we also offer a preferred customer purchase option, retail purchase option or commercial account purchase option for businesses. We also offer a Dealership Option for anyone interested in becoming an AMSOIL Dealer and/or purchasing products at wholesale cost.