[Steve Cassani]

Thanks guys

I sold the Superformqance a couple of years ago. My concern applies to the engine in my 07 Nissan 350Z.

After some searching a few phone calls I've concluded that advice on this subject is largely a function of the options available locally. Ethanol-free gas is still fairly easy to find in Montana. The dealer and owner recommendation is to avoid the additive. In the midwest, politics trumps economics and marketing 'home grown' fuel is considered responsible. The advice I've gotton from folks in this area is to make do with what you find; you're not likley to have any problem with 10% ethanol and, if you do, a seal in the fuel system will begin to leak before anything serious happens.

I'll fill up in Montana and by the time I'm in South Dakota I'll have to bite my lip and accept what Sout Dakotans call an 'octane booster.' Owners of high performance vehicles don't like it. They're resigned to using it for lack of an option, short of filling up at the airport.