4 Seasons Oils

Vacaville, CA

100% Veteran Owned Business

Authorized Dealer

  • tbreckon@sbcglobal.net
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Synthetic Motor Oil

Amsoil Signature Oils Cleans Up The Competition

Amsoil, Synthetic Motor Oil, 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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Why Buy Amsoil Signature Series Oils

engine technology, extreme conditions, Synthetic Motor Oil /

Advanced engine technology and demands of everyday driving generate severe conditions that can challenge motor oil and engine life. Signature Series delivers the ultimate protection against everyday extremes like towing and extended idling. Don’t just take our word for it; read on for proof. Do you have long commutes? You can go 25,000 miles, one

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