dad saw an e 85 pump the other day and had a gas jug so he brought home a couple of gallons and i had read somewhere that it was supposed to be 105 octane. I figured that hey i just as well try it and see what happens, well it wasnt so good, i started the ol warrior up and all it wanted to do was pop. It didnt want to run throughout the rpm range for some reason. I drained it out and ran some 89 and it was all better again. Any suggestions why it did this ?? or does it just not run in stuff not compatible?