AMSOIL first in synthetics
Michael Anderson
Pacific Northwest
CALL (360) 304-8595

Your investment deserves a diesel oil that’s up to the challenge. 

Your investment deserves AMSOIL.
We engineer our synthetic diesel oils with the same passion and pride you put into your turbodiesel, providing protection you can depend on in the most severe operating conditions.

Excessive wear to diesel cylinder liners and rings leads to increased oil consumption and loss of compression, reducing horsepower and fuel economy.

Independent testing shows AMSOIL Signature Series Max-Duty Synthetic Diesel Oil provides 6X more wear protection than required by the standard*. In the same test, AMSOIL Heavy-Duty Synthetic Diesel Oil delivers 4X more protection against wear than required by Detroit Diesel’s standard*.

Detroit Diesel, a leader in diesel engine technology, sets a standard for measuring cylinder liner and ring wear with its DD13 Scuffing Test for the DFS 93K222 specification. Testing of AMSOIL synthetic diesel oils was conducted by an independent lab in accordance with the following parameters:

The test simulates real-world use with a modified Detroit Diesel DD13 diesel engine running for 200 hours. Cylinder liner scuffing and top ring wear are measured and used oil analysis is performed to determine wear levels during the test.

With our top-grade synthetic diesel oils under your hood, you can be confident that there’s more than enough protection to handle the demands of your performance modifications and keep your diesel running strong in the most severe conditions.


AMSOIL Synthetic Diesel Products

AMSOIL Warranty

AMSOIL guarantees the performance of its products, so you can be confident they perform as advertised. AMSOIL introduced the world’s first API-qualified synthetic motor oil and has since introduced a full line of industry firsts. For more than 40 years, AMSOIL synthetic lubricants have proven themselves in the lab, on the racetrack and on the highway.
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Diesel Enthusiasts Trust AMSOIL

AMSOIL-sponsored diesel builder Lavon Miller of Plain City, Ohio developed a keen interest in turbodiesels when he needed a powerful truck to haul equipment for his construction job. Putting the truck through the paces, he performed his own repairs and modifications to keep it on the job and increase its power, absorbing as much knowledge and experience as he could along the way. Soon he found himself modifying trucks for others, working on his own builds and testing them at the local dragstrip.

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 (360) 304-8595

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