How Many Gallons ?
Race Director
Joined: Aug 2003
Posts: 11,043
Likes: 3
From: San Jose Pat Tillman - American Hero
I've never run mine all the way down to "no bars left" on the digi dash, and the most I've ever put in is 17.6 gallons. The capacity is 20, like mentioned, and I've heard of others coming close to that on a fill up, i.e. 19 and change. Yikes...no thanks.
Le Mans Master
Joined: Apr 2002
Posts: 5,726
Likes: 46
From: Waukesha WI
St. Jude Donor '15
The tank is rated at 20. I have managed to put in 19.75 while sputtering into a gas station when my sending unit died. Not good for the fuel pump so I wouldn't recommend trying this out for yourself 
Melting Slicks
Joined: Aug 1999
Posts: 2,619
Likes: 1
From: Whidbey Island Washington
I read somewhere (maybe on ZR-1 only) that these tanks have a lining, not a rubber bladder. In hot temps the lining can pull loose from the tank walls and shrinks and stays in that position thus reducing capacity to something less than 20??? Bill
MORE: Another part of the problem when the plastic liner pulls away from the tank is that it might interfer with the working of the fuel guage causing false readings. I think there was a thread about gas guage problems on the Corvette Forum a few months ago discussing the guage problems and the whole lining issue. I can't find it now that I want to re-read it though. My mechanic said the only solution is a new tank when the lining problem is present.
MORE: Another part of the problem when the plastic liner pulls away from the tank is that it might interfer with the working of the fuel guage causing false readings. I think there was a thread about gas guage problems on the Corvette Forum a few months ago discussing the guage problems and the whole lining issue. I can't find it now that I want to re-read it though. My mechanic said the only solution is a new tank when the lining problem is present.
Last edited by ZRWON; Sep 9, 2004 at 08:01 AM. Reason: More info
Thread Starter
Racer
Joined: Apr 2002
Posts: 406
Likes: 0
From: BAY AREA CALI
Thanks for the replys I had half a tank and went to fill it up for Labor day weekend and the shutoff on the pump failed I stopped pumping when I heard that filled up gas rising sound but the pump failed and keep pumping needless to say it spewed out on the ground the pump said it pumped 14 gallons but after listening to the manager it sounds like the pump vapor recovery system failed and sucked gas from the pump back to the gas station recovery tank I told them it could not be a 28 gallon tank thanks now I get to go back and talk with the genral manager again by the way this was at a Military base gas station they said that the failure was caused by people repeatadly topping their tanks.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Drifting
Joined: Apr 2003
Posts: 1,271
Likes: 1
From: Hopkinsville KY
Originally Posted by ZELLSLIFE
Thanks for the replys I had half a tank and went to fill it up for Labor day weekend and the shutoff on the pump failed I stopped pumping when I heard that filled up gas rising sound but the pump failed and keep pumping needless to say it spewed out on the ground the pump said it pumped 14 gallons but after listening to the manager it sounds like the pump vapor recovery system failed and sucked gas from the pump back to the gas station recovery tank I told them it could not be a 28 gallon tank thanks now I get to go back and talk with the genral manager again by the way this was at a Military base gas station they said that the failure was caused by people repeatadly topping their tanks.
Drifting
Joined: Mar 1999
Posts: 1,784
Likes: 80
From: Detroit
Originally Posted by JCD
When mine hits 3 bars it's out of gas. Then the Reserve light comes on. Just about 18 gallons.
