4 Seasons Oils

Vacaville, CA

Authorized Dealer

Pistons

Order your AMSOIL Signature Synthetic Motor Oil Today!

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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Where Oil Goes and What it Does

A typical engine has hundreds of parts which must be lubricated, sealed, protect, and cooled by motor oil. Motor oil must do this under tremendous heat and stress. Valves, seals, piston wrist pins, main bearings and camshafts are just a few of the internal parts of an engine that require constant lubrication. AMSOIL SIGNATURE MOTOR …

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