hey guys got a question for ya. i have been running a marked fuel in my yamaha mountain maxes and all my other older carbed sleds with out a problem (our marked is 92 octane with no ethanol) now we are the new owners of an 07 M8 and according to our local dealers they say that the die gums the engines up and not to use it. what do you guys think? i am just really un sure at this point as i have had no problems in around 10 years with this stuff. sorry for long post as well.