One of the many specific areas, on turbocharged Dodge Cummins Diesel engines, that can clearly benefit from the use of synthetic oil is the turbocharger. When a turbocharged engine is shut off immediately after use, "heat soak" occurs due to the extremely high temperature still present in the turbocharger. Over a period of time this can lead to deposits that can reduce or block the oil flow to the turbocharger bearings which can lead to turbocharger bearing seizure.

AMSOIL's Synthetic Diesel Oils are inherently more thermally stable than many diesel oils on the market and have been shown to keep turbochargers considerably cleaner than other brands of oil. While poor quality engine oils have been shown to cause turbocharger bearing seizure in under 100 hours during a "heat soak" test.

Many engine oils will survive the 100 hour "heat soak" test, but..., with considerable deposits and incipient oil passage blocking. If you use low quality diesel oils make sure you let the engine idle for a few minutes after use to allow the engine and turbocharger to cool. This does not eliminate deposit formation but it can reduce it.

Take a look at the varnish deposits in the attached picture. These are the results of a severe high temperature deposit test. This test clearly shows that AMSOIL synthetic oil keeps engines cleaner longer than other major brands diesel oils. Which oil would you rather have protecting your engine?

The bottom line: To prevent or eliminate turbocharger bearing seizure, there is no substitute for a high quality synthetic diesel oil (like AMSOIL's) as they have been have been proven to maintain turbochargers in an almost "as fitted" condition and significantly reduce deposit formation.

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. 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.

Specifically for the Dodge Cummins Diesel, AMSOIL engineers and manufactures a fuel efficient 5W-30 Synthetic Heavy Duty Diesel Oil and a 15W-40 Synthetic Heavy Duty Diesel Oil that when used in conjunction with the AMSOIL Super Duty SDF-80 engine oil filter will allow you to travel 7,000 miles between filter changes and approximately 15-20,000 miles between oil changes. This was established by oil analysis testing. If you use oil analysis you can usually go longer than 20,000 miles. 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.

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 regular full flow filter is changed at 7,000 mile intervals and the by-pass filter is changed at 15,000 miles (or longer with oil analysis). The AMSOIL 15W-40 Synthetic Diesel Oils do not break down like conventional petroleum based motor oils, synthetic diesel oils are much more shear stable and do not have the waxes, paraffins and by-products that come out of crude oil that is pumped from the earth.

The by-pass filter removes the particles that cause wear in your engine down to less than one micron (a micron equals 0.001 mm) and keeps the engine oil analytically clean so you do not need to change your oil for a long time, while still getting far better protection than someone that changes their oil every 3000 miles. We are experienced at installing these units on Dodge Diesels and can provide you with exact installation instructions, tips, bracket prints and photographs of our company truck.

In your Dodge Cummins Diesels, when using laboratory oil chemical analysis every 15-20,000 miles it will indicate the oil is perfectly suitable for continued service. Oil analysis will alert you to other things also that may be going on in your Turbo Diesel. Other customers have traveled well over 100,000 miles and oil analysis still indicates no oil change necessary. In addition, the AMSOIL By-Pass filter will also remove up to a pint of water from your vehicle's lubrication system, which is especially important in a diesel engine. Without this, the water promotes rust, corrosion and rapid wear. Internal engine heat also creates acids which also wear the engine components. The water and acids build and continue to work destroying your engine even after engine shutdown.

Oil analysis provides a big return for your small investment by extending engine 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 engine protection.

Your 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.
The AMSOIL Super Duty engine oil filter utilizes a depth-type lofted fiber media that traps and holds dirt throughout its entire thickness whereas a regular folded paper surface-type filter quickly becomes restricted as debris builds up on the paper surface. The AMSOIL full flow filter has a finer synthetic cellulose filtration media, 75% greater efficiency and up to 300% greater capacity than other popular oil filters as tested according to the Society of Automotive Engineers HS806 test method.

If you choose not to install the Dual Remote by-pass filtration system then the AMSOIL Super Duty full flow engine filter would be of a significant benefit to the long term durability of your engine as well as allowing for 7,000 miles of service on the filter. When the filter is changed at 7,000 miles all you have to do is top off the oil. When you reach 15,000 miles you can either change the oil and filter or take an oil sample from the dipstick tube using an AMSOIL sampling pump and send it into Oil Analyzer's Inc. using a pre-paid kit. Oil analysis will indicate the exact condition of the oil and whether it is suitable for continued service as well as determining if there are any other engine components or wear items that you need to be concerned with.

AMSOIL has a complete line of synthetic motor 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 wholesale 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.

Simply changing your motor oil more often with another brand of oil will not give you all the benefits that AMSOIL synthetic diesel oils offer:

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.

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" 30 years ago and have been on the leading edge of technology and innovation ever since then. We have many satisfied customers using AMSOIL synthetic lubricants products in both their commercial, trucking, fleet as well as personal, family and recreational vehicles.

A Cheap Motor Oil may save you money today, But..., it will COST you in the end!

 

Very nice write up you found. I will add some "updates" since this was written.


5W-30 Synthetic Heavy Duty Diesel Oil and a 15W-40 Synthetic Heavy Duty Diesel Oil that when used in conjunction with the AMSOIL Super Duty SDF-80 engine oil filter will allow you to travel 7,000 miles between filter changes and approximately 15-20,000 miles between oil changes.

We also now have a new 5W-40 Premium diesel oil that meets the new API CJ-4 specifications. The SDF filter line has been replaced with the Ea filter line that uses nanofiber technology. EaO80(Cummins), EaO52(Duramax), EaO88(6.0L PS) and EaO99(7.3LPS) These filters allow you to go 15000 miles instead of the old 7500 under severe(towing, etc.) conditions. You can now change oil and filter at the same time.

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 regular full flow filter is changed at 7,000 mile intervals and the by-pass filter is changed at 15,000 miles

With the bypass kit, the full flow with the Ea filter can go 15000 and the bypass can go at least every other oil change.


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.

As mentioned, most aftermarket filters filter in the 20-25 micron range. The EaO filters with the submicron nanofilters are 98.7% efficient at 15 microns. The bypass filters are 98.7% at 2 microns.


the AMSOIL By-Pass filter will also remove up to a pint of water

They have the ability to remove water, but are not promoted this way. As long as you are running your engine long enough to get to operating temps for any length of time, water isn't an issure as it evaporates off.

Other comments:
All makes of trucks can receive the same benefits. This article was just Dodge specific. Extended drain intervals aren't necessary to receive the benefits of synthetics. Even if you insist on changing every 5000 miles, it may cost you a little more now, but if it saves a turbo, delays an overhaul, etc., these things can add up over time. The advantage of the bypass system is well documented and can be used no matter what oil you use.

If you have any specific product or applications questions, be glad to answer.

 

I just changed over to Amsoil 15-40W , same weight as the Rotella , I get a higher pressures at cold , about 3-4lbs , & 1-2 lbs at warm , I like that .

 

The thing to remember about the Amsoil 15W40 is that even though its a 15W40, it has a pour point of -44. The pour point of conventional oil is nowhere near that. This is an important consideration if you live in a cold climate. The faster you can get that oil pumping, the less damage you are doing to your engine.

 

Now that was a good read and you should to keep this at the top as a sticky. I know most of you like 15w40 oil but I'm very happy with their 5w30 HDD oil.