Burning Oil
3rd Gear Member
Joined: Apr 2006
Posts: 1,406
From: Canton MI
RE: Burning Oil
Valvoline Racing does carry straight weight 30 and 20w-50 in a grey bottle.
Drag racing uses less weight due to less drag, but circle track and continious use uses thicker weight to prevent dilution of the oil from fuel.
Drag racing uses less weight due to less drag, but circle track and continious use uses thicker weight to prevent dilution of the oil from fuel.
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