Hey all. Just got my new R/T, and i'm loving it already. I have a question though...the previous owner put a Mopar PCM in the truck which I know requires 93 octane. He said that he's always put 87 in the truck. My question is does the 87 hurt the chip at all, or does it just mean that the chip wont perform to the best of its ability until I run it with 93? Also, he said it was put it and flashed by the dealer. What does this mean? I suck at all the electronics stuff, confuses the hell out of me. :huh: Thanks, Pete.