I have a 1989 Ford F-350 7.3 IDI non turbo, single cab long bed. I was curious to know what the fuel tank capacities are of this truck? It has dual tanks, and the kid who sold it to me said it had two 15 gallon tanks. But, the manual says they are bigger. Does anyone know what they are? Thanks!

 

Should be 19 each.

 

I can put 15 in my front and 16 in the rear. but i think theyre supposed to be 17-18. The ones in my 79 are 18.2 and 21.8

 

These trucks are both 19 gallon tanks.

The vans have a 16 gal front tank, and 22 gal rear tank.