Though I usually take the tank to almost empty, I saw gas prices rising and filled up after burning only about 3/4 of a tank--probably better for the car anyway. I achieved a record (for me) 46.2 mpg.
The only mods so far to this '97 miata are delete cold air intake, raise tire pressure, and most importantly driving technique. I'm thinking a few mods just might get me up over 50 mpg
