saying this for like the Nth now, Ester oils like redline are totally diferent from the ester oil in the 370z for the most part. the nissan oil is a special alcohol based ester that is present at 1.5% and the rest of the oil is conventional. The esters in redline are different kind of ester that has lubricating qualities and is about 90-100% of the contents of the bottle.
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