Royal Purple 5W-30 race oil
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Patman
Staff member
I've been hard on Royal Purple in the past, but I do think their racing oils are pretty good. It would be nice to see a bit more ZDDP in them though.
I'd especially love to see the RP41 (equivalent to a 10w40) in an LS1 engine. Although this RP21 might do well in there also since it's on the thicker end of the 30wt scale.
How much does this oil cost compared to their multigrade street oils?
I'd especially love to see the RP41 (equivalent to a 10w40) in an LS1 engine. Although this RP21 might do well in there also since it's on the thicker end of the 30wt scale.
How much does this oil cost compared to their multigrade street oils?
hey patman,
i paid $6.00/qt for RP41 at a local shop. that is the cheapest i've seen it for. i think the street oil is around $4.00/qt locally.
i paid $6.00/qt for RP41 at a local shop. that is the cheapest i've seen it for. i think the street oil is around $4.00/qt locally.
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