whats the best mpg, that you have done in your teener Options

[messix]

on the a road run with the guys last month on back roads not even taken it easy i got 29.5mpg.
i'm trying something this tank while drivin to an fro to work, 8 miles of surface streets and a little freeway. short shift [edit; i ment skip shift] using 1st , 3rd, and 5th.
all on flat easy roads. use brakes only not down shifting while decel. or stopping.
its hard to not just row through the gears, but i'll try my best.

[dmenche914]

What you need to pick up from what i lay down is that the "new" gas in california that is oxygenated has about 10-15% less enegy per gallon than did the old gas. This means more gallons burned to do the same work. On non-feedback cars (pre-O2 sensors), the engines would run lean on this mixure, thus it was widely recommended on carbed cars to up the jet size if car ran too lean. or tweek FI as needed. Cars with feed back (O2 sensors) would automatically make this adjustment. At anyrate, you would lose about 10-15% mpg with this new gas. I experinced the decrease in milage on my cars as predicted in the news when this new gas came out. Other issues with the new gas was incompatibility with some of the materials used in older fuel systems, resulting in gas leaks in older cars (I had no personnal experience with this.)

The oxygenated gas added O2, but O2 has no BTU value. The added O2 resulted in less fuel (ie BTU's) per a gallon of gas, hence less power and mileage.

Footnote: we also got a price increase with the new less efficient gas.