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Mileage After "low Fuel" Light Comes On


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#1 sciggs

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Posted 28 October 2007 - 04:28 PM

I can never remember how much more fuel mileage you're supposed to have after your light comes on. I have a 99 z71 ext cab. Anyone have some stats on what this would be? thanks in advance
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#2 Jameson

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Posted 28 October 2007 - 04:56 PM

between 15 and 30 id think. It is probably more but Im not good at gambling.
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#3 MS3DALE

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Posted 28 October 2007 - 04:57 PM

I know when my low fuel light came on in my '99,and my '04 also,I had about another 4 gallons of gas left.
So whatever your gas mileage is just times it by 4 (I.E. If your getting 18 MPG then you got around 72 miles until your empty)

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#4 Silverado4x4

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Posted 28 October 2007 - 05:38 PM

Try not to let the fuel in the tank get that low as the pump depends on fuel in the tank to keep it cool, you will greatly reduce the life of the pump keeping your tank below 1/4 or lower. Just a tip for everyone.

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#5 MS3DALE

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Posted 28 October 2007 - 05:41 PM

Try not to let the fuel in the tank get that low as the pump depends on fuel in the tank to keep it cool, you will greatly reduce the life of the pump keeping your tank below 1/4 or lower. Just a tip for everyone.

Good point,I try to never go below 1/4 tank.

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Custom tune by Justin at Black Bear,CORSA "Sport" exhaust system,EXTANG "Full-Tilt" snapless tonneau cover,Rough Country 1.5" front leveling kit,Fabtech 1" rear lift blocks,EZ-Down tailgate damper.
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2012 CRUZE 1LT - Blue Topaz Met. - RS pkg.- Convenience pkg. (work car!)

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#6 mini1

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Posted 28 October 2007 - 06:03 PM

Try not to let the fuel in the tank get that low as the pump depends on fuel in the tank to keep it cool, you will greatly reduce the life of the pump keeping your tank below 1/4 or lower. Just a tip for everyone.

Good point,I try to never go below 1/4 tank.

Not to mention that condensation can form and rust your fuel tank and/or fuel lines from the inside out, and mess up your fuel injectors. Car's can't run of water yet.

#7 Indy

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Posted 28 October 2007 - 07:10 PM

[/quote]
Not to mention that condensation can form and rust your fuel tank and/or fuel lines from the inside out, and mess up your fuel injectors. Car's can't run of water yet.
[/quote]

The fuel tanks on GM trucks from '99 up are plastic but yes to the rest.

#8 redvett

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Posted 28 October 2007 - 07:24 PM

Anytime you run out of fuel or run low and the pump will run dry doing this is like running your engine with out oil. It burns up the bearings & impellers. Guaranteed pump replacement is in your future much sooner.

#9 SilveradoLAX7

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Posted 28 October 2007 - 07:29 PM

I know when my low fuel light came on in my '99,and my '04 also,I had about another 4 gallons of gas left.
So whatever your gas mileage is just times it by 4 (I.E. If your getting 18 MPG then you got around 72 miles until your empty)


The fuel light came on in my '05 SB over the weekend. I drove about 15 miles +/- and then filled it up. With topping it off it took 23.1 gallons. I believe (but I am often wrong) that the tank is supposed to hold 24 gallons. I figure that put me at 1.7 - 2.2 gallons (gave or take) when the light came on.

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#10 Ranger

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Posted 28 October 2007 - 07:31 PM

I think it's a 26 gallon tank for a shortbed. Mine was for the 2500HD and the new 07 as well. Both are 6'6 but on the 1500 CCSBs it said 26 gallons as well.

#11 MS3DALE

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Posted 28 October 2007 - 07:41 PM

I think it's a 26 gallon tank for a shortbed. Mine was for the 2500HD and the new 07 as well. Both are 6'6 but on the 1500 CCSBs it said 26 gallons as well.

Yep,26 gallon tank on the short-bed & standard-beds,and 34 gallon tank on the long-beds.

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'07 SILVERADO Z71 LT2 "VortecMAX" 6-Liter,"Super-Duty" Auto Trans,9 1/2" rear-end w/3.73 G80 Locker,XM,On-Star,BOSE speaker system,Stabilitrak,Block Heater,Sunroof,18" ARE "Cannon" Wheels w/LT275/65R18 Goodyear Wrangler AT/S tires.
Custom tune by Justin at Black Bear,CORSA "Sport" exhaust system,EXTANG "Full-Tilt" snapless tonneau cover,Rough Country 1.5" front leveling kit,Fabtech 1" rear lift blocks,EZ-Down tailgate damper.
GM accessories...Hood Deflector,Molded Mud-Flaps,Ventvisors,Catch-All Floor-Mats,Bedrail Protectors,BedRug Bedliner & Bedmat,and a GM Performance Parts cold-air intake.

2011 CAMARO 2SS/RS - LS3/M6 - Inferno Orange Met. - HURST short-throw - Roto-Fab CAI - Kook's LTs - CORSA exhaust - Black Bear tuned (playtoy!)
2012 CRUZE 1LT - Blue Topaz Met. - RS pkg.- Convenience pkg. (work car!)

My Garage


#12 couchsurf

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Posted 28 October 2007 - 07:50 PM

2000 Sierra, when the light comes on and I fill shortly after I end up putting about 22 gal in. So there must have been about 6 in there, and no worries for 100 miles.

#13 SilveradoLAX7

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Posted 28 October 2007 - 08:31 PM

I think it's a 26 gallon tank for a shortbed. Mine was for the 2500HD and the new 07 as well. Both are 6'6 but on the 1500 CCSBs it said 26 gallons as well.

Yep,26 gallon tank on the short-bed & standard-beds,and 34 gallon tank on the long-beds.

My mistake, it is indeed a 26 gallon tank. That would put a safe estimate, as you mentioned above, right at about four gallons.

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#14 Ranger

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Posted 28 October 2007 - 08:32 PM

I had the low fuel warning come on the HD once, and when I finally got to a gas station (was stuck in rush hour traffic after pulling a heavy trailer) I had about 2.5 gallons left.

#15 omegafiler

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Posted 28 October 2007 - 09:35 PM

Agreed, don't let your tank go empty like that (unless it's just completely unavoidable). I don't think I've ever had a vehicle that I ran down to "E," let alone below E. I'll head for a gas station by the time I see the 1/4 tank mark, or sooner. I never understood the need to constantly wait until you're running on fumes to add more gas. Those poor, abused, and unloved vehicles.... how sad... :dunno: