Oil changes if tracking car

hellokitty · 05-13-2021, 10:05 PM

Quote:

Originally Posted by bimmerboyE92

Updated Blackstone report. Redline 10w40 held up fine to 4 track days. Just not sure where the silicon is coming from. Even with a starting value of 10, it goes up to 20 in 4 track days? New Mahle filters installed at the beginning of this sample.

f80uoa by D S, on Flickr

Silicon is an anti foaming additive used in certain oils such as Redline. Nothing to worry about.

edycol · 05-13-2021, 10:27 PM

I would not worry about silicone. Redline has fairly high silicone levels, and if air filter was changed, it will add some.
But drop in KV100 is not that good. RL 10W40 is a thick oil, and regardless that those are track miles, it is a lot for such oil. I would go Motul 10W40 300V.

NYG · 05-14-2021, 11:21 AM

The F8x oil temps stay extremely low unless something is broken. The additives will not break down prematurely. I would keep standard oil change intervals, they're already slightly accelerated because of direct injection.

My Z06 hit oil temps of 285F regularly on track so I would change it after every event but even then Blackstone report showed that the oil was fine.

edycol · 05-14-2021, 11:54 AM

Quote:

Originally Posted by NYG

The F8x oil temps stay extremely low unless something is broken. The additives will not break down prematurely. I would keep standard oil change intervals, they're already slightly accelerated because of direct injection.

My Z06 hit oil temps of 285F regularly on track so I would change it after every event but even then Blackstone report showed that the oil was fine.

Redline? No, absolutely no! Redline is heavily Ester-based. It will oxidize way before standard OCI. 3-5K OCI based on UOA.
That is why I said there needs to be TAN measurement.

05-13-2021, 10:27 PM	#46
edycol Major 1502 Rep 1,483 Posts Drives: 2011 328i xDrive Join Date: Sep 2020 Location: Colorado Springs iTrader: (0)	I would not worry about silicone. Redline has fairly high silicone levels, and if air filter was changed, it will add some. But drop in KV100 is not that good. RL 10W40 is a thick oil, and regardless that those are track miles, it is a lot for such oil. I would go Motul 10W40 300V.
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05-14-2021, 11:21 AM	#47
NYG Brigadier General 10580 Rep 3,643 Posts Drives: Corvette Z06 Join Date: Feb 2017 Location: Brooklyn, NY iTrader: (0)	The F8x oil temps stay extremely low unless something is broken. The additives will not break down prematurely. I would keep standard oil change intervals, they're already slightly accelerated because of direct injection. My Z06 hit oil temps of 285F regularly on track so I would change it after every event but even then Blackstone report showed that the oil was fine.
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