What grade gas do you put in a v6 mustang

Asked by Jan 05, 2017 at 05:53 PM about the 2007 Ford Mustang V6 Deluxe

Question type: Maintenance & Repair

When I first purchase the car , I was to the put 89
because of a knocking sound when I turn over the
car which I came to realize it's a common problem ,
but when I search I don't get a result or answer  

2 Answers

67,965

Put in 87 octane unless it pings. If it is pinging there is an issue with it that needs addressed. How many miles on your Mustang?

1 people found this helpful.

137000. It only backfired when i started it up thismorning and just took off and only did it once. I have2007 fastback no mods just stock v6. I been using 89 and 91 gas. Had car for a week.

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