Added fuel capacity options for gas truck?

[oldryder1]

looking at options for added fuel storage for my F250. many options for diesel, very limited options for additional gasoline capacity.

any reason not to get a diesel aux tank and just put gasoline in it?

 

[rvlifer]

I have an rds external tank for my f350 diesel. I dont know if there is a difference but they call theirs fuel tanks rather than diesel fuel tanks. Ours works great. Gravity feeds into the fuel system so no pumps to worry about and once the fuel gets to the level where the aux tank runs into the fuel filler it stops filling. There may be a difference in the tubing that goes from the external tank into the fuel filler tube. Hopefully someone else has more info about the difference between gas and diesel.

We saved a lot of money on fuel by finding stations with diesel at 40 to 50 cents per gallon and filling up both tanks. On our last trip to the canadian rockies we only had to buy fuel in canada once. That alone saved us a ton of money.

https://rdsaluminum.com/auto-auxiliary.html

 

[Derby6]

any reason not to get a diesel aux tank and just put gasoline in it?

Um yes. Fire and explosion hazard. Gas is highly flammable, diesel not so much. And gas may corrode or weaken the material the tanks made of.
I see lots of gassers with external pack tanks (Transfer Tank) that have a pump attached. Don’t know of any directly plumbed into the stock tank (Auxilary Tank) like my diesel. But l’d guess it’s doable.

 

[TonyL]

Why not buy a couple of 5 gallon gas containers, put them in a plastic storage crate to stop them falling over and use a small battery operated transfer pump to get it into your gas tank when required.
Far cheaper than any other option and easily removed when not traveling.
That's what we do for our diesel truck, and use the same pump for topping the portable generator from the 5 gallon gas container.
The pump is a turbo boost from Ace hardware for around $30
Been doing this since 2019.

 

[SpencerPJ]

Many on the Ford forums have discussed, consensus is, not a good idea. I agree, a few 5 gallon cans, milk crates, straps. If your truck is like my F150 filler tube good luck with the silly funnel that must be used.

 

[Onyrlef]

looking at options for added fuel storage for my F250. many options for diesel, very limited options for additional gasoline capacity.

any reason not to get a diesel aux tank and just put gasoline in it?

None

 

[Derby6]

None

Are you saying there are no options. Or no reason not to get a diesel aux tank and just put gasoline in it?

In edit I just found this—no prices. Meaning it’s probably pricey. Lol
Gas auxiliary tanks

 

[Knobs1]

looking at options for added fuel storage for my F250. many options for diesel, very limited options for additional gasoline capacity.

any reason not to get a diesel aux tank and just put gasoline in it?

I'm not an expert in this, but this is my somewhat informed opinion...

The issue is flammability and safety.

Gasoline has a flash point of about -50°F whereas #2 diesel fuel has flash point given as a range of 125°F to 180°F. IDK why the range for diesel, but clearly diesel is easier to store and handle safely. This becomes an issue when considering leaking of the plumbing, venting of the tank, etc.

While gasoline and gasohol are more corrosive than diesel, I doubt corrosion is an issue with gasoline in any well-built diesel tank.

Tubing, seals, and cap venting would be my concern.

 

[Chef Duane]

Seems cost prohibitive to put in an aux gas tank. Go with a couple of jerry cans stored properly and a gas certified transfer pump and you should be good.

 

[TonyL]

Many on the Ford forums have discussed, consensus is, not a good idea. I agree, a few 5 gallon cans, milk crates, straps. If your truck is like my F150 filler tube good luck with the silly funnel that must be used.

I'd be interested as to why it's not a good idea.
Virtually everyone towing a boat, travel trailer, side by side or off road vehicle carries spare fuel in a proper red container for generator or engine fuel.
When we looked back in 2019 in to fitting a larger fuel tank, the cost to increase from the fitted 26 gallon to a 35 was over $1500 for the tank alone.
Using a transfer pump negates trying to hold up a five gallon container, holding the spout open and balancing a funnel.

 

[Derby6]

Seems cost prohibitive to put in an aux gas tank. Go with a couple of jerry cans stored properly and a gas certified transfer pump and you should be good.

Really depends on how often and far you travel; weather you travel in: and areas you travel.
I love the one in my 2019. Long hauls and it’s saved me a lot of $$ over the years. Run long and remote runs in bitter cold and winds. Never have to get out of the truck. I’d bet it’s paid for itself in fuel cost savings or will in near future.
Liked it so much I insisted on putting 1 in my 2022. In lower 48 and probably not needed. Still can get 100 gallons at good price and go a long way. Still like it but nothing like my 2019.
My next truck I plan to have 100 gallon transfer tank installed that will also be plumbed in as an auxilary tank.

 

[TonyL]

Really depends on how often and far you travel; weather you travel in: and areas you travel.
I love the one in my 2019. Long hauls and it’s saved me a lot of $$ over the years. Run long and remote runs in bitter cold and winds. Never have to get out of the truck. I’d bet it’s paid for itself in fuel cost savings or will in near future.
Liked it so much I insisted on putting 1 in my 2022. In lower 48 and probably not needed. Still can get 100 gallons at good price and go a long way. Still like it but nothing like my 2019.
My next truck I plan to have 100 gallon transfer tank installed that will also be plumbed in as an auxilary tank.

And if that's what works for you, then why shouldn't you.
Personally, after about 200 miles I'm in need of another tank issue and having the fuel card to replenish diesel at the same time helps.
I'm aware the card is not suitable for the OP.

 

[SpencerPJ]

I'd be interested as to why it's not a good idea.
Virtually everyone towing a boat, travel trailer, side by side or off road vehicle carries spare fuel in a proper red container for generator or engine fuel.
When we looked back in 2019 in to fitting a larger fuel tank, the cost to increase from the fitted 26 gallon to a 35 was over $1500 for the tank alone.
Using a transfer pump negates trying to hold up a five gallon container, holding the spout open and balancing a funnel.

I didn't say it wasn't a good idea. I encouraged him to use gas cans. The only warning I gave, unlike a boat or off-road vehicle is much easier to add gas than to use Fords special elongated funnel that must be used to add to the F250 tank. I'm unsure if OP is wanting extra gas for his F250, or extra gas for toys he carries?

 

[Chef Duane]

Really depends on how often and far you travel; weather you travel in: and areas you travel.
I love the one in my 2019. Long hauls and it’s saved me a lot of $$ over the years. Run long and remote runs in bitter cold and winds. Never have to get out of the truck. I’d bet it’s paid for itself in fuel cost savings or will in near future.
Liked it so much I insisted on putting 1 in my 2022. In lower 48 and probably not needed. Still can get 100 gallons at good price and go a long way. Still like it but nothing like my 2019.
My next truck I plan to have 100 gallon transfer tank installed that will also be plumbed in as an auxilary tank.

Hence the phraseology ... "seems cost prohibitive." If you have the need and funds to install an aux tank then have at it. But if you just want to carry some extra fuel then an aux tank seem cost prohibitive.

 

[Derby6]

Hence the phraseology ... "seems cost prohibitive." If you have the need and funds to install an aux tank then have at it. But if you just want to carry some extra fuel then an aux tank seem cost prohibitive.

Huh? I said.

it’s saved me a lot of $$ over the years.

I’d bet it’s paid for itself in fuel cost savings or will in near future.

Even in the 2022 I can load up where it’s cheap. But I don’t travel as much so that on may be cost prohibitive in the long run but I won’t know till the trucks life is over. Who knows I may end up running thru Canada, using this truck more for work, or run more coast to coast when snowboarding. Just don’t know.

 

[Derby6]

And if that's what works for you, then why shouldn't you.
Personally, after about 200 miles I'm in need of another tank issue

Yes and Yes. I do that as needed in pullouts. Fuel at 250 mile point is over $7 a gallon and $10 a gallon at the 500 mile point. No stations in between.

 

[TonyL]

Yes and Yes. I do that as needed in pullouts. Fuel at 250 mile point is over $7 a gallon and $10 a gallon at the 500 mile point. No stations in between.

Got to be either California or the UK

 

[Chef Duane]

Huh? I said.



Even in the 2022 I can load up where it’s cheap. But I don’t travel as much so that on may be cost prohibitive in the long run but I won’t know till the trucks life is over. Who knows I may end up running thru Canada, using this truck more for work, or run more coast to coast when snowboarding. Just don’t know.

In your case it wasn't cost prohibitive. But in general, it seems cost prohibitive.

 

[Derby6]

Fair enough chef.

@Tony. That made my laugh.

Alaska, the Dalton Hwy / Haul Road.
Fairbanks to deadhorse 500+ miles and then there is the oil fields and ice roads. Coldfoot is the 1/2 way point.

 

[TonyL]

Fair enough chef.

@Tony. That made my laugh.

Alaska, the Dalton Hwy / Haul Road.
Fairbanks to deadhorse 500+ miles and then there is the oil fields and ice roads. Coldfoot is the 1/2 way point.

I thought you just drilled a hole by the side of the road and started pumping up there