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Thread: Attn: N/A Track Junkies - Oil Weight Question

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Posts: 21-24 of 24
2009-04-03 13:09:16
#21
We've logged over 4k track only miles on penzoil synthetic 5w30 FWIW on an engine that started out with 111k miles
2009-04-04 03:21:15
#22
I use mobil 1 15w50 in the summer and 5w30 in the winter.
2009-04-04 14:05:16
#23
Originally Posted by llaprad1
I followed this advice at a few conventions:



How about this thread on the old forum?

Best Oil weight to use on the track? - SR20 Forum



I've been using it exclusively for several years now also.
2009-04-05 01:08:14
#24
Yeah Blair. I have used 15w50 for years. I have never had rod-knock with 20+SERs.
My turbo car NEVER had rod-knock and I BEAT it.
15w50 FTW and now ALL my friends use it.
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