Quote:
Originally Posted by murphyv310
Try to avoid E10, E5 is bad enough. Ethanol can ruin older fuel systems that don't use the proper materials. Ethanol also degrades quickly even in a month. It's usually added at the filling station for that very reason
Modern and more recent engines run very well on Ethanol but ours are older and not set up for the fuel.
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I'd also add that if you don't do enough mileage to get through the fuel in a tank in a couple of weeks - don't fill it right up - you'll end up running the car on much lower energy density fuel than you should. Might partly explain the large variation in mpg that people experience has anyone surveyed average mpg against average time to get through a tank of fuel?
It's even worse on the bike because of the low range and occasional use I find that I sometimes have a half-tank in there for weeks - hence I always when possible fill up with a premium low ethanol fuel.