Just an update on mpg with the Bullet and testing: Refilled tank from 1/2 way down. Did 300 miles, which is when the mid-bar disappeared on the ECO gauge. Calculations on paper show 62mpg average...which is exactly the same as my last tank average, but the dash mpg shows an average of 65.5mpg. I've been conservative with the rides though...trying to get the best mpg in the last 2 tanks to see the max I can hit with mpg. This tank I'm just going to drive it like normal, without really trying to be conservative (ie...slow accelerations, using battery purposely, no a/c, etc.). I just want to see how much a drop in mpg there is from being conservative vs. everyday driver with the Red Bullet. My commutes are still approx 210 miles per week, 50/50 highway/side road...so that hasn't changed. Still using Exxon regular which hasn't changed either. ECO button not used anymore. Will keep yas posted on results.