While not as momentous as Harry's 300,000 miles, I though I might share this. 1997 Blazer, New in June 1997. 4.3L v6, 4 spd auto, 2 door, 2 wheel drive, moderate trim (A/C, cloth seats, PS, PB, manual windows). The a/c runs much of the year, even in winter here.
Anyhow: Total on Gas $8,020.34 Dollars
6,299.169 Gallons
1.276 Average per gallon $2,425.18 Tax at .385/gal (Federal and state)
118422 Mileage on Feb 22
18.79962292 Average Miles/Gallon
Most of the driving is City, 8-10 miles to and from work. There are some trips, 200 miles or so. It's made one long trip to NY state from TX, and got 23.5 on that trip, fully loaded with 3 adults and all the gear we could stuff in. Most of the time, just one person, and a permanent cargo of about 120 pounds.