Has anybody heard the one about

[Odinist]

I'm curious if there is anywhere in the States that the gas doesn't have alchohol in it. It seems everywhere I have been all across the country, it all has alchohol. Even in rural areas.

You can find ethanol free gas all over the place in Oklahoma. They passed a law here last year that pumps that have alcohol in them have to be clearly labeled, which is awesome. You tend to pay about 5 cents more a gallon for alcohol free fuel, but it's worth it (better gas mileage).

[Griffin]

...And stop listening to goobers at gas stations....

This guy told me I needed Viton o-rings in my carbs:






But this guy said that Buna ones were fine:





And this guy (he's undercover in this photo) said he'd arrest me if I started a thread about synthetic vs. dino oils:

[Nessism]

Nissan had a massive recall a number of years back to replace rubber fuel system parts that were deteriorating due to evolutions in fuel formulations; the rubber did not deteriorate with the old gas formulas but did with newer formulas. This problem was not related to alcohol, but rather to other compounds in the fuel (can’t remember the exact details).

My opinion is that it wouldn’t hurt to hedge the bet and use Viton (fluroelastomer) rubber o-rings inside the carbs. I did a search on the web about “fuel injector O rings” and turned up a number of examples where modern cars are using this type of material. I also uncovered reference to using Buna-N O-rings as well but these references were on older cars.

As Griffin alluded, this issue is sort of like synthetic oil; there is technical merit to using synthetic/viton, but it’s not a do or die sort of issue.