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Old 02-12-2012, 11:24 AM
jimefam jimefam is offline
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Location: Cumming, GA
Join Date: Jul 2010
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Mein Auto: 2011 550i on order
Originally Posted by alextremo View Post
Jimefam - I wonder if that MS109 you got was bad. It doesn't make sense for the traps to go down - even if the car didn't adjust for the higher octane I would think they would stay nearly the same, all other things equal.
I thought the same, also I thought maybe he gave me something else perhaps with lead in it and maybe that was why?? They have a 20' container with multiple 50 gallon tanks in it from which he draws the fuel into a smaller bottle then puts it in my car. Maybe he pulled from the wrong one, although I'm not sure why the lead would hurt either. Or perhaps the oxygen in the fuel messed with the dme's AFR targeting? I don't know I figured what you did, at worst it wouldn't do anything maybe I just sucked at driving or something. Makes me want to dyno on the same day running super low with 93 then put some race fuel in and see what it does.

Last edited by jimefam; 02-12-2012 at 11:26 AM.
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