Originally posted by Alan Coles:

Kevin, not only is it alright to use fully synthetic oil, it is preferable and better for your engine in cold weather. The primary benefit of fully synthetic oils in winter is that they don't thicken as much at low temperatures as dino oil and therefore provide better flow/lubrication at initial startup.






That is a common misconception.....Oil weights are all EQUAL....a 5w 30 synthetic will be equal to a 5w 30 dyno oil.

Main issue is that synthetic takes longer to degrade, hence the reason it seems like synthetic does not get thick.


But your, theory is incorrect.

But synthetics in general do offer better pertection than dyno oils.

Lupe

3.0 SVT hybrid...all the fixens...Track/Race ready very soon!!!!!! 20,000 + miles