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Username Post: Lubrication Troubles
Forum Newbie
Posts: 20

Reg: 03-12-10
03-15-10 09:36 PM - Post#1880862    

May seem like a stupid question but I am having a really hard timing finding a suitable engine oil to run in my original 46 Chevy Stylemaster 6 cylinder. The engine calls for a Straight SAE 20W, however it appears as though the only company making it is Rotella, and its specifically designed for a Diesel. I am not an oil buff, but I do know enough to be concerned about the lack of Zinc additive (800PPM), and the fact that its manufactured for a diesel.

In the event I am not able to find a 20W can I safely run 10W-30? OE Service manual states not to use a Straight SAE 30 unless in desert conditions. The vehicle will be run in temperatures ranging from as low as 40*F to as hot as 90*F.

I live in Orange County, NY


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