diesel motor oil for duramax

5w-40 Diesel Motor Oil

Posted on March 23, 2022 Written by BruceW 1 Comment

Amsoil Signature Series Max-Duty Synthetic Diesel Oil✅Delivers 6x more wear protection✅Maintains proper viscosity (thickness)✅Minimized oil consumption✅Maximizes fuel efficiency✅Excels in … [Read more...]

New AMSOIL Diesel Products

Posted on August 15, 2018 Written by BruceW

AMSOIL Diesel oils API diesel oil specifications. The American Petroleum Institute, or API, is the only national trade association that represents all aspects of America's oil and natural gas industry including production, … [Read more...]

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AMSOIL PI Gasoline Additive only $5

Promotion: AMSOIL P.i. for $5 Effective Dates: Feb. 25-March 10, 2026 Promo Code: PI226 AMSOIL P.i. is a potent gasoline performance improver with concentrated detergent that aggressively cleans stubborn, power-robbing deposits from injectors, valves and the combustion chamber. Effective in port and direct injection systems. Bottle compatible with capless fuel systems. Cleans entire fuel system in one tank of gasoline. […]

Superior Diesel Protection

AMSOIL Diesel Oil keeps you business running AMSOIL Signature Series Max-Duty Synthetic Diesel Oil and Heavy-Duty Synthetic Diesel Oil exceed the latest API CK-4 specification and represent a serious upgrade in protection and performance compared to oils formulated for previous API diesel oil specifications, including API CJ-4 and CI-4+. More piston-scuffing protection for reduced wear […]

AMSOIL PI Gasoline Additive only $5

Five Reasons to Use Motorcycle Oil in Your Bike

1) Motorcycles run hotter In general, automotive engines are water-cooled. A typical automotive engine can reach 235ºF (113ºC) during operation, which is plenty hot. Motorcycles, however, run even hotter, particularly big, air-cooled V-twins, like your average Harley-Davidson.* They rely on air flowing across the engine for cooling, which is inherently less efficient at dissipating heat. […]