Fully Synthetic Diesel Oils 

AMSOIL Diesel Oil 5w-30, 5w-40, 10w-30, 15w-40 are premium Fully Synthetic diesel oils providing long life, performance in Nissan UD and American made diesel engines. Built with heavy-duty dispersant/detergent additives, and 12 TBN chemistry neutralizes acids and controls soot thickening from EGR and blow-by to protect against corrosion, cylinder bore polishing (wear) and varnish/sludge deposits. amsoil Synthetic Diesel Oil Replaces Nissan long life Synthetic, Shell Rotella, Cummins Blue and Mobile Delvac, shaeffer.

Get 3X OEM Drain recommendations up to 1 year, 50K miles, 600hrs.

Why use Schaeffer, Mobil Delvac, Rotella, Cummins oil and change theirs at OEM recommended drain intervals?  AMSOIL Diesel oil can go 3 times recommended oil changes, GUARANTEED ! If you can get oil for $100 a oil change and do 3 changes per year, thats $300 plus 3 filters and 3 labor charges. Use Amsoil and its only $100,1 filter and 1 labor charge plus Superior protection. DUH! Now I dont have a degree in math but the choice is pretty obvious. Amsoil is the better choice, bar none. We also publish our 4 ball wear test results ASTM D-4172 on all diesel oils. See if you can find schaeffer 4 ball wear test ASTM D-4172 results or the other competitors test results online.

Notice some brands leave out important information! We wonder why??

Best property ratings are indicated by asterisk (*)

(1) Four Ball Wear test results courtesy of Amsoil, from independent testing. Not all oils listed were tested.

(2) Information was not included in manufacturer's product information sheet. Amsoil ash information from Ed Hackett, University of NV reasearch facility.

VI: Viscosity Index--Rate of change in viscosity over a given temperature range (ASTM D-2270). Larger number indicates lesser change.

PP: Pour Point--Fluidity at low temperatures in degrees Centigrade (ASTM D-97). The lower the number, the colder it will flow. -24°C=-11&degF; -51°C=-60°F

FP: Flash Point--Temperature at which the oil starts to vaporize in degrees Centigrade (ASTM D-92). Typically, the PowerStroke operates at 85-110°C, but can excede 120°C. 204°C=400°F

CCV: Cold Cranking (apparent) Viscosity--Resisance at -15°C (ASTM D-2602). Lower numbers indicate easier cold starting. (3)Delvac 1300 tested at -20°C; Series 3000 and Delvac 1 tested at -25°C.

%ASH: Percentage of sulfated ash--Residue remaining after the oil is burned. The lower the number the better.

HT/HS: High Temperature/High Shear Viscosity--Measure of protection under high temperatures (ASTM D-4683). Higher numbers indicate better protection.

TBN: Total Base Number (Detergent Alkalinity)--Indicates stability, engine protection and cleanliness, and performance. Higher numbers are better

4-Ball: Four Ball Wear Scar--Measurement of wear on a spinning bearing under load and at temperature (ASTM d-4172). Lower numbers indicate less wear. Tested at 1800 RPM/40 kg pressure/150°C for one hour. Scar diameter in millimeters. (4)Heavy Duty 15W-40 tested at 1200 RPM/40 kg/75°C.

Diesel Fuel Additves (Cold Flow Improver,Diesel Recovery,Diesel Fuel Additive, ect.)

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.   Package sizes include: 1-Quart Bottle 1-Quart Bottles (case of 12) 1-Gallon Bottle 1-Gallon Bottles (case of 4) 2.5-Gallon Bottle 2.5-Gallon Bottles (twin pack) 30-Gallon Drum 55-Gallon Drum

PRODUCT DESCRIPTION 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. It delivers extraordinary lubrication in diesel engines found in commercial, fleet and personal vehicles. Built with the latest additive and synthetic base oil technology, AMSOIL Premium Synthetic 15W-40 Diesel Oil exceeds the higher performance demands of modern engines. It withstands the stress of heat, soot and acids to help prevent deposits, corrosion and wear. AMSOIL, the leader in automotive synthetic lubrication, produced the world’s first API-qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, The First in Synthetics,® to do the best job protecting your engine.

 Diesel Fuel Additves (Cold Flow Improver,Diesel Recovery,Diesel Fuel Additive, ect.)

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 diesel 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 this picture. These are the results of a severe high temperature deposit test. This test clearly shows that AMSOIL diesel 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 Diesel plus save time and money. Diesel trucks are excellent vehicles and exceptionally well engineered. In our opinion they are one of the most advanced vehicles ever produced, however there are ways to make the performance and longevity even better with AMSOIL Synthetic Lubricants.

Simply changing your diesel oil more often with average quality oil will not give you all the benefits that AMSOIL offers:

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" 35 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.