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i know this has been covered many times before... everyone has said that once light comes on you ahve about 5gallons left..

but i knwo more then once i filled up right after light came on and it was like 25 gallons put in... and no way there was 5 gallons left... n e ideas WHY?
 

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Each truck is different. The sending unit that measures the amount of fuel in the truck is the main factor of when that light comes on. The other day I parked on a hill, facing down hil. My light came on. I knew I was low, and I was going to fill up that day anyway for a road trip next day. I put in 17 gallons (out of 28).. so depending the angle of the truck, and the sending unit, you can get anywhere from 2-8 gallons area
 

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my light comes on when there is about 2 1/2 - 3 gallons left. I see no problem.
 

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Last week I drove about 80 miles with the light on and only put in 22 gallons, I thought it would be closer to 24 or 25. For my truck, when the light comes on I usually have about 6-7 gallons left.
 

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I can't remember EVER seeing a low fuel warning light on any vehicle I've ever owned! For all I know, mine may not even work. Unless you're towing long distances, why would you ever wait so long to refuel? Once it gets down to 1/4 tank....do you think it's gonna go up on its' own?..lol. Other than towing, I gas up at around 1/2 tank.
 

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I can't remember EVER seeing a low fuel warning light on any vehicle I've ever owned! For all I know, mine may not even work. Unless you're towing long distances, why would you ever wait so long to refuel? Once it gets down to 1/4 tank....do you think it's gonna go up on its' own?..lol. Other than towing, I gas up at around 1/2 tank.
I agree..between 1/4 and 1/2 mark I fill up. Makes it easier to see the price at the pump. Pretty nice when I "fill up" and it only cost me $18 bucks LOL
 

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I usually fill up at 1/4 tank - 21 gallons
 

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If it came on with 2 gallons you would not have a very good shot at finding a gas station in a lot of cases. The Titan isn't a Sentra as far as MPG and range.
 

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If it came on with 2 gallons you would not have a very good shot at finding a gas station in a lot of cases. The Titan isn't a Sentra as far as MPG and range.
Worst case scenario, you would get 10mpg in the Titan. I think a 15-20 mile radius is enough to find at least ONE gas station.
 

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Spoke to a technican and read :read: that if you drive with the light on; fill

up within a couple miles, for the fact that the pump can heat up and (no not

to the point to cause a fire), but you shorten the life of the pump that has

to stay cool. Regardless of the point why risk it, and I believe we didn't buy

these trucks to worry about the MPG, these aren't 4bangers.:bangit:
 

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im to lazy to fill up that fast.. plus i have to try to extend it out as much as possible so i can use company gas. yea i didnt buy then lift on 37s for mpg.
 

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Yeah....but driving around nearly empty looking for a gas station before it konks out is the ultimate adrenaline rush. It really gets the 'ole heart rate up and we all need a little "exercise" in our daily routines. LOL! J/K

The problem with the low-fuel light, at least on mine, is that there's still a substantial amount of gas left in the tank when the light first comes on. I've traveled over 40 miles both ways (55-60mph freeway driving) with the light on and I still had fuel left to make it home. It's a bad habit, but having the light come on too soon defeats the whole purpose of having it. Might as well have it come on when there's 1/2 a tank left. It tends to make people (like me) disregard it and drive until the gauge needle is a few ticks from the bottom line like the old days.

On my old truck, I personally set the low-fuel light when there was exactly 1/2 a gallon left in the tank. I knew if the light came on in that truck, I needed to look for gas station pretty quick. With the Titan, it seems I can drive for days and days after the low-fuel light first comes on.
 

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Mine went in for the TSB on the sending unit, and sure enough it was f-ed up. They had to order the part, after telling me they stock it which is why I brought the truck in when I did, which still isn't in. So I will be taking a cross country trip this weekend with a messed up gauge. Anyways, the light has been coming on with about 10gl left in the tank, showing just under 1/4 tank. I can put in $10 (at ~$1.75gl) and the light doesnt go off nor does the needle move above 1/4; when it used to move quite a bit. Needless to say I can drive for about a week with the light on right now. Its gonna screw me over when it's fixed and I'm so used to be able to go so long and I try it without thinking.
 

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I can't remember EVER seeing a low fuel warning light on any vehicle I've ever owned! For all I know, mine may not even work. Unless you're towing long distances, why would you ever wait so long to refuel? Once it gets down to 1/4 tank....do you think it's gonna go up on its' own?..lol. Other than towing, I gas up at around 1/2 tank.
Because I don't like gassing up. You are stopping more often than I am.
 

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I have been resetting the tripometer when the light comes on. I will then drive about 50 miles and end up putting about 24.5 gallons in. My preference is fewer trips to the gas station.
 

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I'm on my second replaced fuel pump/sending unit(3 if you include the original unit) so my trust in the units is kind of weak, so I ALWAYS re-set my trip meter at every re-fill so that if it goes south again I'm not worried about how much fuel I have on board...

My light comes on between 260-275 miles and IF I stop right then and there and fuel up it will take 21 gals, but usually by the time I fuel up its about 22 gals...

I take long enough trips were I don't want to stop to fuel at 1/2 tank...
I like having 6-7 gals left over when the light comes on, and I'm not worried about "burning" up the pump at that level...
 

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Because I don't like gassing up. You are stopping more often than I am.
Exactly during the life of my truck that means you are filling up twice as much as me. Think about how much time that wastes in a lifetime.
 

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As lou alluded to, the sending units in each and every one of these trucks is garbage - until recently that is, thus the reason everyone is getting different results.

I call bull poopy on this never let it get to E or leave the light on for long. On every vehicle I own, I have consistently let the tank get to E or even below. Sometimes on purpose, others because I was poor at the time and had to stretch my gas out until payday. Not once has it ever caused a problem. If it was a major problem that would cause any sort of damage I'm sure there would be warning stickers/labels on the gas guages, gas cover door, owners manual etc.
 
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