Nissan Says: "Select only engine oils that meet the American Petroleum Institute (API) certification or ....
The certification mark is with the star emblem (not found on RP). Also they're example for the API Service has SM (not SL like RP). All this may be moot, but I'm just curious of other's opinions.
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13.369 @ 102.73 Bone Stock. BERK HFC's installed 5/14/09 @ 1490miles, 13.212 @ 106.15. Cobb Post MAF Hoses installed 3/20/10 @ 5,043miles, future: FI exhaust with 18" res and s/s cans.
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