FULE GRADE

20

Asked by NoNGuruRB Sep 08, 2018 at 02:27 PM about the 2009 Saturn Aura XR

Question type: General

What grade should I use for my 4 cylinder 2009 XR
saturn aura? 87, 89, 93?

3 Answers

87. You can try the others and see if it runs better and gets better gas mileage.

1 people found this helpful.

I said it might run better. I have had cars that called for 87 but ran way better on 89 octane.

If the engine is pinging on the recommended grade (a common problem) it will retard the timing.

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