Which Gas to Buy

acura
tsx

#1

I have a 2010 Acura TSX. The manual says the car need 91 octane but the pumps only offer 87, 89 or 93. Should I buy half 89 and half 93? Would buying 89 hurt my car? Is 93 going to be too much?


#2

Use the 93 or find another brand of gas that sells 91.

Using octane lower than the specified 91 can cause long-term damage to the engine.

91 should be considered the “minimum” octane. Higher won’t hurt anything, but is not necessary.


#3

91 is the minimum octane so 92/93 is fine.

I occasionally blend 89 with my tanks when I know I have at least half 93 octane. Its fine and my engine (high strung turbo) needs higher octane far more than a TSX.