So I filled up tonight after letting the front tank dang near run out of fuel to the point where it felt as if it was only running on a couple cylinders. I have been really paying attention to my fuel maleage for the past couple weeks since I have changed the fuel filter, added the FPR shim and also trying the 2 stroke oil. My mileage has increased with all these things (not sure what has been the most help though) from 12.5 city/highway to 16.5. I'm really stoked about my increase, but what I can't figure out is why I can't get more then 17.4 gallons in my front tank. I thought these things were suppose to have something like a 19.5 or 20 gallon tank up front. Even after clicking the nozzle a couple times, I was only able to 17.4 gallons in it. Could there be an extension missing on the pick-up or something that is not allowing me to use the more then 17+ gallons?

Thanks in advance!

 

Your CC F350 should have a 19.5 gallon front tank.

All the trucks have an 18.2 gal. tank in the rear but the fronts were all different depending on the cab/bed/drivetrain configuration.

CCLB's have 19.5
CCSB's have 16.5
SCLB's have 19.5
SCSB's have 16.5
RC4x4's have 22
RC4x2's have 19

 

Thanks Rodney! The truck is a longbed so it "should" have a 19.5 tank in it. If that is the case, then is there be reason why I can't get anymore the 17.5 gallons in at a time?

 

There will always be a few gallons left in there even when the truck can't run on that tank anymore. I think the most Ive ever got in mine is 16.5 or so.