Subaru legacy b4 can I put 91 fuel into it

Asked by Jun 25, 2018 at 08:36 PM about the 2000 Subaru Legacy

Question type: General

I am unsure if I can put 91 into my subaru legacy
b4 year 2000, will it affect it or will it just run like
normal?

2 Answers

145,235

No problem and it might run better than on regular. My 2003 Forester ran a LOT better on 89 octane.

11,630

Shouldn't matter. If 87 feels worse there's something else wrong, like maybe dirt/water in the tank that benefits from preventing dilution when you use a higher octane. Better to just never run below 1/4 tank on a dinosaur.

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