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06/04/2026 10:24 am
Topic starter
I have a 2005 Acura TSX it's a 4 cylinder and the manual does call for 91, should I stick with that or can I use 89 or 87. It has 220,000 km and it is an automatic.
2 Answers
4
06/04/2026 11:07 am
What is the exact wording of the owner's manual for fuel octane - "recommended" or "required"?
3
06/04/2026 3:08 pm
Hi.
We get this question a lot. Which is why it's answered in our FAQ (at the top of the main page).
You can also use the search box in the top right corner. Here is an identical question answered by Scotty
https://carkiller.com/scottykilmer/qa/decisions-decisions-2/
Let us know if you still have questions.
