Synthetic Oils

Order your AMSOIL Signature Synthetic Motor Oil Today!

AMSOIL Signature Series, AMSOIL Synthetic Gear Lube, Synthetic Oils /

AMSOIL keeps pistons cleaner even after doubling the length of the industry standard test. In independent testing AMSOIL 5-30 delivered cleaner pistons by 40% than required by standard. 75% more engine protection against horsepower loss and wear. 50% more cleaning power vs. AMSOIL OE Motor Oil Protects turbochargers 72% better than required2 by the GM […]

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Amsoil Signature Oils Cleans Up The Competition

Amsoil, Synthetic Oils, TNB /

The total base number test (TNB) measures the additives in a motor oil. The higher an oil’s TBN, the better its ability to neutralize contaminants such as combustion by-products and acidic materials. Higher TBN oils neutralize a greater amount of acidic material, which results in longer oil life and cleaner engines. AMSOIL has a large

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