Tires and MPG

Looks like tires can affect gas mileage by 5-10%. With heavier 17" stock wheels, I was getting about 1-2 miles per gallon better than with the stock 16" wheels for the same car but more aggressive tires. The tires with better fuel economy were the Bridgestone RE-92. A terrible tires for any enthusiastic driving. The RE01R on the other hand is quite good for enthusiastic driving, but mpg is consistently down.

My commute consists (in mileage) consists of 10-15% city and the rest highway. According to time, the commute consists of 35% city with the remainder stop and go high driving from a dead stop to about 70mph in stretches over a course of 25-30 miles.