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What octane fuel to use?

1511 Views 8 Replies 8 Participants Last post by  Duran
I don't own a Titan, I own a 2008 Pathfinder V8. I think it's got the same engine as the Titan.

The book isn't exactly clear about what fuel I should use. They use two different measurements in the book, but the numbers are kinda close to one another so I'm not sure what to go by - I live in the US.

I *think* it says I should not use fuel under 91 octane. But does that mean I SHOULD try to use 93? Or that it's perfectly tuned for 91? Or what?

The dealership seems just as clueless as I am. (which is pretty bad..)
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cbreaker said:
I *think* it says I should not use fuel under 91 octane. But does that mean I SHOULD try to use 93? Or that it's perfectly tuned for 91? Or what?
If it call for at least 91, anything over will not hurt. Here in Houston you can't find 91 only 87, 89 or 93.
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