Amsoil Signature Oils Cleans Up The Competition

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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