JDee
Ancient Racer
So up here in the (not so) great white north they mandated 5% ethanol in 2007 in Ontario, don't know about elsewhere. But that's supposedly an average, so it is alleged (on the street) that Shell and Esso put zero ethanol in their highest octane fuel, and a higher amount (10% is bandied about) in their regular and mid-grade. It is also alleged that Petro-Canada puts ethanol in their 94 octane. But who really knows? Everyone's an expert these days, except me. I know nothing for sure about fuel.....and freely admit it.
I tend to only buy the highest grade Shell/Esso for the Mustang in the possibly false belief that it is better than an ethanol containing fuel and actually does not contain any ethanol. But I really have no clue. I think with a stock motor and a conservative tune it should be fine. I certainly have not experienced any weirdness, other than from the weird tune that Ford puts in their PP2 kit, which will be gone this spring.
It's all a bit like black magic and outside of the refiners I don't think anybody really knows for sure what's going on, just tons of speculation. The only thing I know for sure is I don't know what the hell is going on.
I tend to only buy the highest grade Shell/Esso for the Mustang in the possibly false belief that it is better than an ethanol containing fuel and actually does not contain any ethanol. But I really have no clue. I think with a stock motor and a conservative tune it should be fine. I certainly have not experienced any weirdness, other than from the weird tune that Ford puts in their PP2 kit, which will be gone this spring.
It's all a bit like black magic and outside of the refiners I don't think anybody really knows for sure what's going on, just tons of speculation. The only thing I know for sure is I don't know what the hell is going on.