My last 5 tanks of gas

[Casey]

MPG

17.96
18.56
19.58
18.99
19.39

Overall average 18.88

OK, you say, what's so special? This is on a vehicle with 106K miles and 35" Cooper STT.

I am trying some driving techniques, and I am solidly converted. Before I started this, average mpg was normally in the 16's occasionally breaking 17 and once broke 18 (all on the 35's) depending on makeup of the miles. Before this I had NEVER broken higher than 18.4 and so far 4 out of 5 tanks have bested this number (the 18.4 was on the factory 33's). I made my first 400 mile tank on on of these fillups, and am averaging about 50-60 more miles out of a tank by doing this. I could have made 400 on at least 3 of the 5 if I had driven further before filling up.

Got anyones attention yet?