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Best Oil for Street Legal Drag Car
 
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Question:
Best Oil for Street Legal Drag Car
Dear Mobil 1, I race a 700hp drag car that is street legal. The motor is a 505c.i. BB Mopar with solid lifter cam with .674 lift. I am currently using the Mercedes-Benz SLR spec Mobil 1 5W-50 oil. (9 quarts and a Mopar race filter).  I change it every 25 1/4-mile passes or 500 street miles due to the extreme rpm and 13.5/1 compression ratio and the solid lifter cam. It comes out dark but just short of black. Is there a better oil that I could use in this application? The SLR spec oil has been working great since I changed to it and I have not a problem. Prior to the Mobil 1 I was using a conventional Valvoline 5W-50 race oil but kept getting high oil temps. Thanks.
-- Dallace Brandon, Placerville, CA
Answer:
If it isn’t broke don’t fix it. Stay with the product you are using and having good results with. However, if you want to see if you can get a little more power (who doesn’t), we recommend you try Mobil 1 Racing Oil 0W-30 introduced in spring 2009. It will provide a boosted level of ZDDP for outstanding protection of the solid lifters.
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