Auxiliary diesel fuel tank Yea or nay

[Bigblockyeti]

I would certainly go with an in-bed tank vs. a larger capacity frame tank. I've heard of issues with CEL from the fuel gauge not going down as fast as it should based on miles traveled. The computer knows approximately what it should read and when, if that's not happening it could turn into a minor problem.

 

[star1k]

I would certainly go with an in-bed tank vs. a larger capacity frame tank. I've heard of issues with CEL from the fuel gauge not going down as fast as it should based on miles traveled. The computer knows approximately what it should read and when, if that's not happening it could turn into a minor problem.

Thank you. Are any particular models/ brands you have in mind?

 

[Bigblockyeti]

I don't have any specific brands I could recommend beyond getting an aluminum one for lighter weight and corrosion resistance. Beyond that, they come in several shapes and heights, largely dictated by volume. Get one that has a good warranty, will fit under any tonneau cover and has the capacity you need. Based on your extensive planned trips, it sounds to me like it would be worth the investment.

 

[Joe Hogan]

Here is an entertaining video on some PU mods a camper did to their rig you might find interesting

 

[star1k]

Here is an entertaining video on some PU mods a camper did to their rig you might find interesting

Thank you. Yes, I did see this video. My concern is that the ungraded tank adds only 20 ish gallons and costs more than a 100-gallon aux tank with a toolbox. Legally we can transport four 5 gallons jags of diesel and each canister costs 30-ish backs. + transfer pump ( if I don't want to lift canisters) another 100-ish.

 

[Lil'Skeet]

I have a 115 gallon auxiliary|spare tank in the bed of my 1995 F250 diesel. I love it. Gives me a 1,700 mile range with a good safety cushion. Makes no difference in my fuel mileage if it is full or not. I track every fill up to keep watch on my trucks. The truck rides a lot nicer with the extra 1000.lbs in the bed. I have it on an electric fuel pump that runs to my rear tank. Flip switch, fills tank, then shut off. Don't have to stop. I also have an electric pump nozzle to fill equipment. I would be willing to bet I save fuel by not needing to stop, then get back up to speed again. Throw in my list time and it's a no brainer. I would recommend filtering the fuel w| water separator as soon as possible when it leaves the tank. Diesel injection systems get expensive very quickly. 5 gallon can a messy as heck. Especially with the "smart" spouts that I remove and end up dumping straight from the ca. Then you have the funnel to deal with with diesel all over it. You get the point.
The only thing I am missing is a gauge to show me how much fuel is in aux tank. I use a wood broom handle and tracking milage has worked for 325,000+ miles on that truck.

 

[sanda]

I think the big 3 offer larger tanks on their 8' beds. I've got a Ram with the 50 gallon tank. Best 300.00 option you can buy. Increased my range by more than 50%.