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Diablo

Good question! I would not think so but I will look the next time....

I have noticed that the higher octane yields better MPG. The first tank of fuel was supplied by the dealer and if I was a betting man I would bet it was not 93 octane. That tank of fuel I only got 17.4 MPG out of it, the second tank I filled it with 91 octane and I achieved 19.8 MPG. All of the...