Hi,
I'm new here, and already found several answers to long annoying questions. One thing that has always bugged me is the gas tank capacity. I have a 2005, 4x4, 4 Door, with the V8. Everything I've read says the tank should be 22 gallons. I can only ever get maybe 19.8 in it, even when I've run out of gas. Has anyone else noticed this? I would have loved to had that extra 2 gallons of capacity a couple of times.
Thanks,
James

 

Welcome to the forum! These trucks are notorious for issues when filling the tank. I dont think I've ever got more than 20 gallons in even with the gauge on empty. Maybe there is a hidden "reserve" somewhere...lol...Dodge maybe stretched the capacity a little to meet some epa mileage standard or something like that...imo

 

I've been able to put 21 gallons on my truck. But thats after I drove the truck for a while with the gas light on. These trucks just have a pretty forgiving reserve.

 

I put 20.9 in my 05 after driving 30 miles beyond 0 miles left according to onboard fuel computer, typically at empty (not out of fuel) it takes around 19.4--19.6 gallons

 

I would be very suprised if a tank advertised as 22 gallons held less. I would be even more suprised if that same 22 gallon tank took 22 gallons after running out of fuel. With a conventional fuel pump (not a sump style system that feeds from the bottom of the tank). the fuel pickup is above the bottom of the tank. Think of siphoning water with a hose that won't quite reach the bottom of the container; there's always some water left after you lose the prime.

 

that is most logical (wheres the spock smiley???)

 

Agreed - the reserve is very generous on Dakotas. Easily 4 gal by my estimate.

 

The most I have put in is 21.4 and that was about 10 miles past the 0 mile mark on the overhead and quite some time with the fuel light on.

 

I find it interesting that the window sticker says 22 gal tank, yet the Dak service manual says it's 25 gal.

 

Another Dakota anomaly...wonder if the engineers who designed it even know.....