Well I hope what you are seeing for MPG will rub off on MY SEEG [smiley=huepfenjump3.gif]. I am running the TMax etc. on the 103 and I think I am getting about the same as everyone else I know, :o35 mpg, (OK I lied, 33MPG) :-/, and I am not complaining, and I am definitely not running around on cruise control and coasting down the hills to get a few extra MPG if you know what I mean) [smiley=huepfenlol2.gif], but where are you getting this 50% better mileage from-inquiring minds need to know [smiley=confused5.gif]. By the way I have already got my name on a closed loop system from JDK, so I am already a happy Zippers customer. [smiley=huepfenjump3.gif]