Quote:
Originally Posted by kannibul
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)
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Actually you should send in all your oil changes, especially the early ones because they keep records of your oil changes and will do comparative analysis of them for proper wear readings.