oxbow1 wrote:you can't get a build up of ethanol in your gas tank!
it's all 10% in NJ so 90% of it is gasoline.
if everything you put in the tank is 90/10 then the ratio won't change.
unless you start trying to run on everclear you won't have a problem.
worrying about miniscule stuff like this is ridiculous, change your oil,and filters, gas it up and go....isn't that what you do with your car?
you're riding one of the most reliable and well engineered bikes made,don't you think those engineers knew a little bit about the fuel they would be burning?
your riding on the NJ TPKE and your worrying about a little moonshine in your gas?
you should worry more about the guy doing 70 that was driving an oxcart 6 months ago.

Well, I could see one way how it is possible that the ratio of ethanol/gas could change in a tank.
One is heavier than the other. We have two tubes from the gas tank going to the engine/carb - and one is located higher than the other.
So, if you keep consuming from the top of the tank, and refilling, then it is possible that the heavier of the two would gather more and more in the bottom of the tank.
But I think it is fairly unlikely, especially when I use a lot of the tank and do the somewhat risky behavior of keeping it in reserve most of the time when I ride.
So far, the highway hasn't been that big a deal. Local roads - I have had a few incidents or encounters with cars with drivers suffering a sudden attack of idiotitis. But so far, only one real-world quick-stop.
Riding a big, isn't much different than riding a car - only the affects of stupid drivers get magnified.
RhadamYgg