Stubby wrote:

E15 Gulf gas sold by Cumberland Farms make my lawn tractor backfire and
won't idle properly. I did resolve the problem by adding "stabilizer"
to the gas, but that raises the total price. Fortunately, I don't own
an airplane so I don't have worry about it personally.

My lawnmower runs better when I put alka seltzer in the tank, especially
after a long day of mowing with ethanol.