Quote:
Originally Posted by Volcom370Z
I wouldn't want to make baby Jesus cry, but God forbid something happened engine wise and they do test it, I'd rather not risk it. I just didn't know if anyone else here running Redline knew or cares about the lack of rating in their warrantied cars. I did, however, notice that Royal Purple IS API cert'd with an SL rating. Isn't this an older rating? Isn't SM the newest? Why would they not have the newest rating available?
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SM is current, and I think the manual specs SM or higher. The manual actually refers to several certifications - perhaps RP or Redline carry those?
In any case, I've used Mobil1 for years, and I have no reason to change. I've even sent a few to Blackstone for testing - but none for the Z yet, as the oil in it isn't old enough on it's first change (@ 1200)