Upgrading to larger fuel tank 2021 F-150

[lovemath]

I am just sick! I was at the dealer all day debating between trucks. Then the deal on another truck fell through, so it was added into the mix. After several hours of comparing and contrasting which one was the best for me, I pulled the trigger on one with a 3.5L Powerboost. I asked about low "miles to empty" # and was told it was because it only had 9 miles on it. I came home happy as a clam and went through everything again and realized that it did NOT have the larger gas tank!!!!!!! This is my FIFTH F-150; the smaller tank would have been a deal-breaker for me. I don't know how I missed it!!! Any idea if it can be switched out and about what the cost would be???? There is zero chance that I can do this, so I will most likely bring it to Ford.

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[AccentedWanderer]

I am just sick! I was at the dealer all day debating between trucks. Then the deal on another truck fell through, so it was added into the mix. After several hours of comparing and contrasting which one was the best for me, I pulled the trigger on one with a 3.5L Powerboost. I asked about low "miles to empty" # and was told it was because it only had 9 miles on it. I came home happy as a clam and went through everything again and realized that it did NOT have the larger gas tank!!!!!!! This is my FIFTH F-150; the smaller tank would have been a deal-breaker for me. I don't know how I missed it!!! Any idea if it can be switched out and about what the cost would be???? There is zero chance that I can do this, so I will most likely bring it to Ford.

I am sure this wont be that big of a deal eventually. Just want for some aftermarket brand's new product such as transferflow's 45 gallon f150 tank (though for 15-20 model only) eventually.

 

[USAFordW1E]

Just like you, I am on my 4th F150 since 2012. My previous F150s had extended-range fuel tanks. My newest truck is the PowerB0ost with 30.6 gallons. This is the largest tank you can get in the PowerBoost. I was so used to having the larger tank for towing, but it is not that much different. When I am not towing, I find that I am filling up every other week as I usually did and I am getting better MPG (6+ more than 2018). At first, I thought it was going to be a big deal, but in application, I am filling up no more than I was with the extra 4.4 gallons. I typically get 650-680 MTE.

 

[snyce1]

I am sure this wont be that big of a deal eventually. Just want for some aftermarket brand's new product such as transferflow's 45 gallon f150 tank (though for 15-20 model only) eventually.

Not sure about tank upgrade . Is your tank 30 gallons?

Ive seen but not purchased rack systems for inside bed that carry at least 5 gallon fuel cans that are rectangular and mount just off floor behind wheel well. Thaat would be my work around if i needed big fuel reserve for off road

 

[Northern Goat]

I didn’t think the power boost could fit a larger tank since the batteries use that space. Isn’t the theory that you wouldn’t need the larger tank due to electric assist?

 

[remtiwk]

Powerboost does not support the 36 gallon tank. I have a Powerboost and it has not been a problem at all. 600 miles to the tank is doable depending on how you drive

 

[RJL1400]

I am just sick! I was at the dealer all day debating between trucks. Then the deal on another truck fell through, so it was added into the mix. After several hours of comparing and contrasting which one was the best for me, I pulled the trigger on one with a 3.5L Powerboost. I asked about low "miles to empty" # and was told it was because it only had 9 miles on it. I came home happy as a clam and went through everything again and realized that it did NOT have the larger gas tank!!!!!!! This is my FIFTH F-150; the smaller tank would have been a deal-breaker for me. I don't know how I missed it!!! Any idea if it can be switched out and about what the cost would be???? There is zero chance that I can do this, so I will most likely bring it to Ford.

I believe you have 3 days to change your mind on a purchase and if the dealer misrepresented the tank you would have a valid argument

 

[lovemath]

Just like you, I am on my 4th F150 since 2012. My previous F150s had extended-range fuel tanks. My newest truck is the PowerB0ost with 30.6 gallons. This is the largest tank you can get in the PowerBoost. I was so used to having the larger tank for towing, but it is not that much different. When I am not towing, I find that I am filling up every other week as I usually did and I am getting better MPG (6+ more than 2018). At first, I thought it was going to be a big deal, but in application, I am filling up no more than I was with the extra 4.4 gallons. I typically get 650-680 MTE.

That is good to hear. Thanks for sharing!

 

[lovemath]

I believe you have 3 days to change your mind on a purchase and if the dealer misrepresented the tank you would have a valid argument

I don't but I think you could easily make the argument that it wasn't on the window tag and it was my responsibility to look at it. The problem is that I looked at so many in such detail that when this one suddenly became available I honed in on that it had all of the combinations of options that I wanted. All of the others had the larger tank so after trying to figure out which was the better fit the larger tank wasn't an option that was on my radar.

 

[Missmy3/4ton]

Some people here have added the 36 gal tank to their 5.0s....the 36 gal tank has a 5 gal reserve now, so you're never going to put more than 30-31 gallons into it (the DTE will read 0 miles). With a 31 gal tank, you're not missing much, not enough to spend the time or money swapping in the larger tank to not even be able to use all of the fuel.

 

[RJL1400]

I don't but I think you could easily make the argument that it wasn't on the window tag and it was my responsibility to look at it. The problem is that I looked at so many in such detail that when this one suddenly became available I honed in on that it had all of the combinations of options that I wanted. All of the others had the larger tank so after trying to figure out which was the better fit the larger tank wasn't an option that was on my radar.

If you signed for it (finance) I believe they give you a 3 day buyers remorse. I would hit them up with that, see what they say, maybe they will give you a few dollars off, who knows? Gas here in upstate NY is 3.47 so when I fill up I am spending 50-60. I have an xlt crew cab sport and that is about all the money I want to spend for gas at one time.

 

[Northern Goat]

I Gas here in upstate NY is 3.47 so when I fill up I am spending 50-60. I have an xlt crew cab sport and that is about all the money I want to spend for gas at one time.

$60??? Try $180 in Canada.

 

[imnuts]

Given that the OP got the Powerboost, there is only one option for fuel tank size. I have yet to have any range anxiety with mine. The only people I've seen that could use the larger tank were towing, and even then those extra few gallons aren't getting you far.

OP, if you like EVERYTHING else about the truck, why is the fuel tank size such an issue? Given the current state of the auto market, the only way to get everything you're looking for is to order it and wait 4-6 months most likely. You're going to have to comprise somewhere if you're looking for an off the lot vehicle regardless of brand.

 

[RJL1400]

$60??? Try $180 in Canada.

holy cow!

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