[DaveC]

Quote:

Originally Posted by Tifosi Or a lesser quality regular in general as the frequent station tank refills ensure that the crap that stirs up never settles, but instead gets mixed in and pumped into our gas tanks. You currently using higher octane, which presumably hasn't been stirred up too much in the underground holding tanks, could explain the sensation of smoother running. That or mayhaps your ignition timing isn't quite as close as it could be so that it runs proper on the 87 but is pretty good for the higher octane. Just reachin' mind you.