Just to throw it out there, I live in the rust belt and these are all still in use.
The 1975 D300 Dumptruck has just over 100,000 miles on it and it averages 14-16mpg (with 4.88 gears, a 318 and a 4 Speed)
The Orange 1984 Dodge D50 has over 600,000 miles on her and she averages about 17mpg with 4.10’s and a 727 Transmission.
The Diesel Dakota has 217,000 miles on her and she averages 28-33mpg
Costs me less to maintain the old trucks than it does to buy a new one, even combining the parts and such of all 3 over the years I’ve owned them, it is still thousands upon thousands cheaper than a new truck.
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