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Is there any difference in MPG when you use 91 vs 87 gas?
I'm currently only using the 87 octane at the gas station for obvious reasons. The gas price is here in the SF Bay area around $2.51 although I got gas last week for $2.41 at Costo. I get roughly 52 MPG with freeway miles. Not bad.
Has anyone checked out to see if there's a difference between the 87 and 91 octane or perhaps the 89.
Thanks for replying. Happy Prius driving
I'm currently only using the 87 octane at the gas station for obvious reasons. The gas price is here in the SF Bay area around $2.51 although I got gas last week for $2.41 at Costo. I get roughly 52 MPG with freeway miles. Not bad.
Has anyone checked out to see if there's a difference between the 87 and 91 octane or perhaps the 89.
Thanks for replying. Happy Prius driving