4 extra gallons......where is it? Look MOM I can read with my eyes closed!!

[Duece McCracken]

I just recently tested my F150. 12 miles to empty, about 3.3 gallons left in the tank.

I don't think the Jeep system thinks the tank is 18 gallons. This is just how Jeep is with their conservative low fuel warnings and empty readings. This was common forum talk 20 years ago in the TJ forums. People thought they had the smaller 15 gallon tank instead of the 19 or they thought they had a 15 gallon fuel pump and sending unit giving bad readings for a 19 gal tank.

My experiences are with Mustangs, Edge, and Focus.

Its a truck thing that car guys dont get? Lmao

I can't remember anything about my XJ's, been too long. This is my first Jeep in 15 years. Could very well be the case.

I'm just happy Jeep is keeping manual trans alive. This was just a small learning curve. Everything else has been quite nice!

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[AstroZombie]

My experiences are with Mustangs, Edge, and Focus.

Its a truck thing that car guys dont get? Lmao

I can't remember anything about my XJ's, been too long. This is my first Jeep in 15 years. Could very well be the case.

I'm just happy Jeep is keeping manual trans alive. This was just a small learning curve. Everything else has been quite nice!

my XJ had a 2.8L v6 that would diesel on me and blow the vacuum line off the crappy 2 barrel carb. I had to keep a screwdriver with me to get it started until i figured out just plug the vacuum line in and it'll fire right up. That and my Power steering pully was warped so anytime i was mud bogging at high RPMs the belt would jump ship. Plus the clutch master cylinder leaked onto the fuse block so i either had no brake light or no dash lights. Ah the good old days!! Oddly enough i never ran out of gas with it.

 

[OM Jeep]

I went a lot further than normal recently after it said empty. Probably 30-40 miles. When I filled up I put in just under 20 gallons.

 

[HenrytheDestroyer]

Someone please make the above post a sticky or something!


Just in general............

As I've said elsewhere, I have gotten 21+ gallons in mine - I was risking my wife giving me holy hell and living the rest of my natural life being reminded of it, but we were not that far from gas and we knew people in the area (her old home town) so I wasn't TOO worried.
When we left home it said we had 30 miles left. I knew the trip was 25 miles so unless I hot-rodded the thing, we'd likely be fine. It did simply say "low miles" for the last leg of the trip.

I agree with the above - the tank, when bone dry, no usable fuel in it at all, is likely 22 gallons. But rather than people go to a Gladiator forum or fakebook page and bitch and gripe and moan and groan about how their JT left them stranded because idiot engineers told them they has 22 gallon tank and the cluster read "30 miles" remaining and someone assume there was leeway in that number and hit 30 and she died............ they'd rather be bitched at for doing the right thing and giving you conservative numbers.

Imagine the crap in these threads if you saw you had 20 miles left and got a full 22 gallons in a 22 gallon tanks. Man, those designers/engineers would be raked over the coals! They left me stranded!
They know that if it says 30 miles remaining you WILL try to go 40 just knowing that they are lying idiots and fools and they know nothing (and you could do better)

I know I’m late to this party but in my Sport S 6MT, I ran out not too long ago on the side of the road. My ‘miles to empty’ was nearly dead on, as I was expecting another 20-30 miles because of prior fill ups of 17-18 on similar ‘empty’ notices. Nope.

After putting in a gallon or so as a reserve , I only could put in about 18 after driving a few miles to the station. Was getting 19-20 mpg.

No matter what everyone else is sayin, my gauges are dead nuts accurate. And my refills are 17-18 gallons when I let it get low towards E. When my gauge says 50 miles to E, it’s 50 miles.

I know now. I always wondered with all my prior cars but this was my first time ever running out of gas.

quick edit: because of the above, I found this thread looking to find my missing 2-3 gallons. Was expecting 22, only filled 18-19ish. *I know now*but I just wanted to know for future reference.

 

[Gvsukids]

I know I’m late to this party but in my Sport S 6MT, I ran out not too long ago on the side of the road. My ‘miles to empty’ was nearly dead on, as I was expecting another 20-30 miles because of prior fill ups of 17-18 on similar ‘empty’ notices. Nope.

After putting in a gallon or so as a reserve , I only could put in about 18 after driving a few miles to the station. Was getting 19-20 mpg.

No matter what everyone else is sayin, my gauges are dead nuts accurate. And my refills are 17-18 gallons when I let it get low towards E. When my gauge says 50 miles to E, it’s 50 miles.

I know now. I always wondered with all my prior cars but this was my first time ever running out of gas.

quick edit: because of the above, I found this thread looking to find my missing 2-3 gallons. Was expecting 22, only filled 18-19ish. *I know now*but I just wanted to know for future reference.

Do you have a diesel?

 

[HenrytheDestroyer]

Do you have a diesel?

Nope 6MT gasser

 

[Alan_Hepburn]

Consider that the fuel pickup is not mounted on the bottom of the tank, at the absolute low point of the tank; it's not a gravity feed. It's mounted inside the tank, and there will always be some fuel sloshing around on the bottom of the tank that cannot be picked up by the pump. Looking at the size of the tank it's not difficult to think there might be a couple of gallons that are unusable...

 

[HenrytheDestroyer]

Consider that the fuel pickup is not mounted on the bottom of the tank, at the absolute low point of the tank; it's not a gravity feed. It's mounted inside the tank, and there will always be some fuel sloshing around on the bottom of the tank that cannot be picked up by the pump. Looking at the size of the tank it's not difficult to think there might be a couple of gallons that are unusable...

Yeah.
Out of curiosity I ran some new numbers with my current tank. Miles driven plus ‘remaining mileage’ was about 351, divided by 18.5 avg mileage is 19.02 gallons accounted for.
Missing 3 somewhere.

 

[Alan_Hepburn]

I don't have the ambition to go crawl under our JLU or JT with a tape measure, but if you're really interested you can get a close approximation of the capacity of the tank using this formula: (L x W x H) / 231 - measure the length, width, and height of the tank in inches, find the volume by multiplying those numbers and then divide by 231 (the number of cubic inches in a gallon of gas).

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