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Old 11-19-2015, 02:47 PM   #16
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
Quote:
Originally Posted by BoxsterSteve View Post
Possible, but I'm unsure; may also have something to do with their being able to claim longer oil change intervals if oil is hotter and burns off contaminants more completely !?
At least in theory, anyhow.
Just the opposite is correct: as I noted above, years of UOA results say the lower temperature stats actually do more to help the oil live longer. The same UOA's also back up the fact that oil contamination (fuel and water) are the same with the 160F stat as they are with the 186F OEM unit.
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