Does synthetic oil improve MPG?

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Apr 15, 2009 | 03:36 PM

#21

dave092

Joined: 12-31-2008

Posts: 2

From: Crane, MO

Thanks....great advice.

Apr 15, 2009 | 08:14 PM

#22

Hotrodbob

Senior Member

Joined: 08-19-2007

Posts: 829

From: So.Cal.

I run Synthetic oil on all my cars and have since the mid '70's. race cars and street. Reduced engine wear, run cooler(older hi po stuff) and better Fuel economy. I even went 80k miles on a Vega before it needed to be rebuilt.

Apr 15, 2009 | 10:15 PM

#23

HHR_SS_QC

Senior Member

Joined: 03-29-2009

Posts: 1,097

From: Quebec City

Ran my 91 Chevy Cavalier RS 3.1 V6 on 5W30 Amsoil synthetic oil for 16 years, without a problem. Best car I had so far. There will be no other oil than synthetic oil in my cars/trucks. Starts in the winter like it's summer. Synthetic oil improves everything (in terms of performance). Oil is the blood of the engine.