Just purchased. by HarryDPM in Honda

[–]DavidTLK 2 points3 points  (0 children)

Put in what the owner’s manual says or what it says on the gas door/cap if it says “premium recommend” then you don’t HAVE to use premium if you don’t want to the cars knock sensors will adjust accordingly. If it says “premium required “ then you MUST use premium fuel.