I have an engineering background and tend to keep track of everything.
Since I picked up my new 1998 Honda Accord on 6/18/1998: 4 cyl Coupe, 5 speed. Wisconsin weather except for two years in Vegas.
I have filled the tank 647 times, with 6,977 gallons of reg. gas, at a cost of $13,422. Avg mpg of 32.26 over 230,000 miles and counting. Total maintenance costs of $7,872. Been retired 4 years now and last year I put on 6,000 miles total.
Told you it was useless facts, but I was doing my year-end totaling. BTW, my wife thinks I'm nuts, so I gave in and let her stop keeping track of her Subaru about 8 years ago. It's a 97 Outback and only has 102,000.