Hey guys, just a quick question. Got my trinity today.. super pumped, naturally. I've never had a tuner before, so im a total noob.. heres my situation. I let my buddy borrow my truck to move, and he returned it with a full tank of 89 octane, nice of him, i know, but i was lookin' forward to fillin' er up with 91 tomorrow and havin' some fun. what tune should i start with now? or should I wait until i can get a full tank of 91 in er?? thanks!