Quote:
Originally Posted by civicdrivr
Mobil 1 5w-20
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Not sure if it's the same with the BRZ or not, and some of this is just superstition IMHO, but Subaru engines seem to hate Mobil 1. Most Subaru guys avoid it like the plague, even with no definitive scientific basis.
Well there is some science to it, their 5W-30 is not very good and breaks down easily. Being the recommended weight for the WRX/STi, it's not recommended. Their other weights like 0W-40 are actually decent.