Quote:
Originally Posted by cmiovino
If it's just one a month, 0w-20 is fine. Just about everyone here running gen 2's runs 0w-20, including top-dog national level drivers. They push their cars hard.
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I'd say part of that is actual national level drivers aren't worried about their warranty and don't care about dropping the pan to check for excess RTV.
Those guys operate at a different $$$$ level than us middle-class plebs for the most part.
Quote:
Originally Posted by VoltsFRS2013
5W20 isnt that far off your OEM weight, and it's already in the manual in gray area fine print that you can run that weight anyways lol. That being said, I'd be changing your oil after every event if you're doing some hard hard driving.
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Depends on which book you look at. It just says "USE 0W-20 Synthetic" Page 42 of the 2023 BRZ Getting Started Guide:
ENGINE OIL
Use 0W-20 synthetic, with one of the following specifications:
• API classification SN with the words “RESOURCE CONSERVING”, SN PLUS with the
words “RESOURCE CONSERVING”, or SP with the words “RESOURCE CONSERVING”.
• ILSAC GF-5 or GF-6A, which can be identified with the ILSAC certification mark
(Starburst mark).
https://techinfo.subaru.com/stis/doc...2306A_STIS.pdf
Page 382 of the 2023 Owners Manual says:
0W-20 synthetic oil is the required oil for optimum engine performance and protection. Conventional oil may be used if synthetic oil is unavailable.*: If 0W-20 synthetic oil is not avail-able, 5W-30 conventional oil maybe used if you need to add oil.
However, you should change to 0W-20 synthetic oil at the next oil change
So they are saying use 5W-30 in a pinch, not they are suggesting running it full time.
https://ownersman.com/manuals/2023-S...-owners-manual