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AMSOIL offers superior lubrication technology for your Duramax Diesel engine. Learn what many manufacturers and servicing dealerships don't want you to know about AMSOIL synthetic motor oil.

We are 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 Duramax Diesel option in one of the most popular and well 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.

We intend to expose the truth of how the petroleum industry and the quick lubes, dealership oil service centers, etc. work to get your money on a regular basis.  In a recent  Lubricants World Magazine interview the president of Jiffy Lube International (owned by Penzoil- Quaker State), Marc Graham states that if they can get customers to shorten their drain intervals by 100 miles it would mean an additional $20 million in revenue for the company per year and if they can get consumers to do one more oil change per year it would mean $294 million for the oil change alone and $441 million in revenue when they include ancillary products and services that go along with the oil change. In fact, Graham openly admits that the bottom line is profits. The shorter the drain interval the more money Jiffy Lube and Penzoil-Quaker State make.  Apparently they don't  seem to care about your vehicle and selling you a quality extended drain interval synthetic, like AMSOIL. All they want is to see the same customer over and over again as often as possible!

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 motor oil and get a superior product and also increase the  performance and add to the longevity of your Duramax Diesel  plus save time and money. The Duramax Diesel is an excellent vehicle and exceptionally well engineered, however there are ways to make the performance and longevity even better with AMSOIL Synthetic Lubricants.

Synthetic Oil Proven to Prevent Turbocharger Bearing Seizure

One of the many specific areas on a turbocharged engine, such as the Duramax Diesel, which can clearly benefit from the use of synthetic motor 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 oilways, 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.  Read on to learn the many more ways in which your Duramax can benefit from synthetic oil.

Current recommended practice is to change your oil every 3000 miles with petroleum based oil as well as with other brands of synthetic oils. This is completely unnecessary with the AMSOIL technology that is available today, and has been available since 1972. The auto companies all know about AMSOIL but are "afraid" of it.  It can cause them lost profits in  service work, parts sales, quick lube oil changes and on a long term basis, regular repeat vehicle sales since engines, transmissions and differentials have been proven to last longer with AMSOIL. Several dealerships we have visited stated that they like to keep customers coming in every 3000 miles so they can look the vehicle over and possibly find other components that they can service.

The 3000 mile oil change is, in our opinion, one of the biggest scams on the American public ever.  Many of the same companies that continue to recommend the "3000 mile oil change" in the U.S. currently manufacture and/or recommend, and have for many years, 12,000-18,000 mile synthetic oil changes in Europe! In fact Europe's goal is to reach 30,000 mile oil change intervals in the near future. That is a proven fact that they don't want you to know.

 It is our opinion that the 3000 mile oil change is a big money generator for all parties involved with it. They want to sell oil, as well as possibly find other things to repair, and they want to ensure you come back on a regular basis.  What better way is there to do that than with the " 3000 mile oil change".   You pay on a regular basis and are constantly keeping track of when the next oil change is required, especially if you log a lot of miles.  The "3000 mile oil" will provide average performance and longevity of your engine and that is about it.  Over a period of time, internal sludge and varnish build up from petroleum oil can possibly start causing problems, namely piston ring groove and valve sticking as one of the top issues that has been identified.  If you change it yourself, you can save some money but you still have your time involved plus all the waste oil to dispose of.

It is also our opinion that the people that run the quick lubes and service centers are there to make profits by seeing you on a regular basis and do not care about extending your vehicles life. We know this because we have tried to get some of the quick lubes and dealership service centers to carry AMSOIL extended drain interval gas engine oil (25,000 miles/1-year and 35,000 miles/1-year with the 0W-30) and get the standard response that they know it is an excellent product but if they install it they cannot keep customers coming back as often. AMSOIL then tailored a special top quality reduced mileage extended drain interval oil  (called XL7500) of 7500 miles for gas engine vehicles for the quick lubes so they can keep customers coming back but still give them added convenience of extended drains intervals. This has proven to be an excellent program for all involved.

In addition, many auto and equipment companies have tested AMSOIL and know how good it is and many OEM auto engineers even use it in their own vehicles but we believe they will not use it in production for "political reasons".  It is our opinion that oil companies need to sell large volumes of oil and auto companies want your engine and powertrain to have somewhat of a finite life.  Enough life so that you are a very satisfied and happy customer and will come back and buy another one yet not so long that you won't need to buy another vehicle for a long, long time.  Petroleum oil appears to accomplish both objectives perfectly. For the last 30 years, AMSOIL has been proven by tens of millions of miles of over the road testing as well as industry standard laboratory ASTM testing to allow vehicles and equipment to perform better and last longer.  

The fact is that if every vehicle in the U.S. used AMSOIL that oil usage and waste oil would be reduced by over 80%!  Just imagine the money saved and the positive environmental benefits, not to mention the improved wear protection provided by AMSOIL synthetic lubricants. Plus the fuel savings alone would amount to 3.66 billion gallons of fuel yearly and this is based on 1998 data, the last year Domestic Fuel Consumption data is available from the government. Now, with those hard facts in-hand I find it hard to believe the auto companies are not taking action to go100% synthetic on all lubricants in production vehicles.

I have an article of an AMSOIL user with 731,000 miles on his 1993 Ford Aerostar on the original engine and transmission. He was using AMSOIL from the beginning. This type of mileage is not uncommon when using AMSOIL synthetic lubricants.  Now, what do you think would happen it everybody used AMSOIL and got that much mileage on their vehicles? The auto companies like to hear reports of stuff like this on a small time basis but not on a large scale as it would have major negative economic implications.

Nobody in the business of selling petroleum oil and repairing vehicles is going to tell you how to extend your drain intervals using AMSOIL technology and they know very little, if anything, about the technical and engineering aspects of lubrication, filtration and oil analysis science.

Simply changing your oil more often with "reputable" 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" 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 Duramax Diesel AMSOIL engineers and manufactures a 15W-40 Synthetic Heavy Duty Diesel Oil (as well as Series 3000 5W-30 Heavy Duty Diesel Synthetic) that when used in conjunction with the AMSOIL EaO52 engine oil filter will allow you to travel 20,000 miles minimum 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 Ford 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 20,000 mile intervals and the by-pass filter is changed at approximately 50-60,000 miles (depending on oil analysis).   The AMSOIL 15W-40 Synthetic Heavy Duty Oil 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.

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.

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 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 7,500-10,000 miles of service on the filter.  When the filter is changed at 7,500-10,000 miles all you have to do is top off the oil.  When you reach 20,000 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 oils, greases, transmission fluids, gear lubes, Ea Absolute Efficiency micrfiber 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.

We are committed to excellence in our products, customer support and technical assistance and look forward to the opportunity to show you a better way.  Please give us a call at 1-888-290-7622 or e-mail us at info@texassynthetics.com

If you would like a FREE comprehensive packet of technical, information, catalogs, specifications, retail and wholesale prices, dealer application and other crucial information regarding AMSOIL Ultra Premium Synthetic Motor Oils and Filtration Products plus much, much more please e-mail us at info@texassynthetics.com with your postal mailing address and your packet will be shipped promptly. Your name and address will be held strictly confidential.

AMSOIL is Proudly Made in the U.S.A.  AMSOIL is America's Oil.