What grade gas do you put in a v6 mustang
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
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?
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