i have a big problem, the past 2 times i have driven my evo i noticed white smoke coming out the tailpipe when idling. today was the worse out of the 2 times. today there was a huge cloud of smoke. is this a sign that my rings are gone? i also was running e85 and waited for it to go down to the right level before i put 91 back in it but i didnt feel it up, i only put about half a tank in, is that problem too or are my rings gone? any help would be great thanks, i would love to not blow my motor lol.