4 Seasons Oils

Vacaville, CA

100% Veteran Owned Business

Authorized Dealer

  • tbreckon@sbcglobal.net
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AMSOIL 5-30 Signature Series wins when tested against 17 other brands

Automobile, Synthetic Oils, Vacaville Amsoil Dealer /

This is a great video initiated by an independent person interested in finding out how 17 synthetic oils performed.  Amsoil did not sponsor this comparison. Testing of all the oils was done by an independent lab for factors like the ability to flow in cold weather, evaporation, and wear.  There are a lot of good […]

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How Often Should Synthetic Motor Oil be Changed? Amsoil can go 25K

Automobile, Diesel, Motorcycles, Synthetic Oils /

It used to be common practice in the 60’s and 70’s to change oil every 3 to 5 thousand miles.  Amsoil Synthetic oil reduces maintenance, annual oil costs, and there is less waste oil disposal. Amsoil synthetic Signature series oils can go 1 year or 25K miles under normal driving conditions, or under severe operating

How Often Should Synthetic Motor Oil be Changed? Amsoil can go 25K Read More »