4 Seasons Oils

Vacaville, CA

100% Veteran Owned Business

Authorized Dealer

  • tbreckon@sbcglobal.net
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Synthetic Motor Oil

Amsoil or Pennzoil, which wins Championship? Let’s find out!

Amsoil, Synthetic Motor Oil, Synthetic Oils /

This Video shows tests and results of Amsoil Signature Series Motor Oil 5-30  being tested against other motor oils.  These tests were conducted by a third party that had no affiliation with AMSOIL and results are shown on video after each test was conducted. There are many synthetic oils on the market but none of […]

Amsoil or Pennzoil, which wins Championship? Let’s find out! Read More »

What Happens if I Use A Thicker Oil in My Engine?

motor engines, Synthetic Motor Oil, Synthetic Oils /

AMSOIL recommends using the viscosity the manufacturer recommends. But using slightly thinner or thicker oil “likely” will not cause any harm. Todays moderns engines are built to a lot tighter tolerances than years before. This allows for the use of lower viscosity oils. It also reduces internal friction of moving engine parts.  Using a lower

What Happens if I Use A Thicker Oil in My Engine? Read More »