between 17 to 19 mpg
14-19 mpg just depends on what kind of drive train
It seems to be around 13/18 city/Hwy
My '97 runs about 11-12 but it is a F350
all in all with the variations of rear ends average of about 15
2013 F250 diesal mpg hyway/town
Bad!
MY EXPERIENCE WAS 12-13 MPG WITH NO MOD'S
I have a 1994 Ford E350 with a 7.3 liter diesel motor. When I'm driving empty, I can get 14 mpg. When I'm pulling a 5,000 pound trailer, I get 10 mpg.
Mine is getting 10ish without the overdrive engaging, so I'd guess it would do better with overdrive.
The fuel tank for a 1992 Ford f350 is 37.20 gallons ... I think . It's rated for 15 mpg in the city and 20 mpg on the highway . It can tow up to 12,500 lbs .... that's all I got .
25
2002 Ford F-350 Specs Check related link below