A small group of friends is going on a drive this weekend, and I've been given a heads up that the quality of gas isn't so good where we are heading. I was wondering if I should be concerned, and if so what recommendations you guys have. A couple guys are taking some xylene premix as a precaution.

 

As long as you can get gas you will be fine. These are not high compession engines so no biggy. Have fun!

 

unless you are gassing up in a third world country you will be fine.

 

What do you consider high compression?

 

Might help if you offered up where you were going. Folks in the states don't really have much experience with areas selling low quality gas or the need for xylene pre-mix for that matter.

 

Just up in the backwoods of northern Arizona.

 

Bored, stroked, high compression pistons, thin head gasket, etc. Anything greater than stock compression...is high compression and often requires higher octane fuel.

 

My GTS has a 12.5:1 compression ratio. You don't consider that high compression? I think all the 911 DFI engines are around 12.5:1, and the 911 engines do require high octane fuel. Do you not consider an engine to be high compression until it gets up to diesel compression?

 

I find it hard to believe gasoline in Northern Arizona is poor quality - what are your friends basing this on? Maybe they're worried they can only get regular octane??

 

It is high compression compared to what? A Civic! Point is you can run on 93 octane. A modified engine often requires a booster- ours does not if stock.

You can get 93 anywhere in AZ, if your near Vegas you can even get 100 octane.

 

Actually, that's not the case. Our pumps have 87, 89 and 91. 93 is not available anywhere in the metro phoenix area, though the Love's by Wild Horse Pass Motorsports Park has race fuel.

 

True enough, 91 octane is generally as good as it gets in Phoenix and most of Las Vegas. I spend a lot of time in both places and haven't had a fuel issue yet with my 3.6 997.1. I wouldn't worry if you are headed for the rim for the weekend as I was up there last year and 91 was generally available in Payson, Show Low and Pine Top. Have a great ride and get away from this 113 degree heat.

 

Pair of panty hose to filter out the wee nasties.

Bottle of Marvel Mystery Oil just in case you miss a few...

 

You are correct. Error on my part.

 

Why not download a gas station app onto your smart phone to tell you where the good stations are?