i reccommend dumping that fuel out cuz there is probably water in it, fuel to replace is cheap but a leaned out cylinder is not . Amsoil octane boost is a great product that i have ran for years, give it a try!!!
I agree the you just plain got some bad stuff. I used to run mid grade or high test in my sleds but have since switched to regular and they run just as good with no noticable difference on the cheap stuff.
