04-28-2014, 09:52 PM
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#33
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Senior Member
Join Date: Jul 2012
Drives: 2013 Black FR-S
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Quote:
Originally Posted by smbstyle
My only issue with running a higher viscosity oil on track was I saw about a 10*f increase in average oil temps running a 0w30 (GC) versus a 0w20 (Toyota SN), and I believe a 5w40 or 10w40 would increase oil temps even more.
I hit oil temps of 300*f on track my first day at Sebring in June, bone stock, and average temps during the day were high 280's to mid 290's. I sent in an oil sample to Blackstone and it came back great, with no evidence of the oil breaking down.
I just switched to 0w20 and saw oil temps in the high 270's, mid 280's (August), and will be running one more day on this oil before I send it in.
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Isn't the ecu pulling a lot of timing out at these coolant levels?
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