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gas tank?

9

98gpgt98

New member
Hi,

I have a 1998 grand prix GT and it says I have a 18gallon gas tank but whenever I run my gas tank to almost empty the most I ever fill up is around 13? Where is the other 5 gallons?
 


when you hit dead E you still have 3 gallons, thats why. this car is designed to make you not run out of gas but sadly i have done it three times lol
 
lol alright i figured it was made to make sure you dont run out of gas just kind've sucks i would like to be able to run it down all the way just hard to tell when it says you are empty when you really arent.
 
98gpgt98 said:
lol alright i figured it was made to make sure you dont run out of gas just kind've sucks i would like to be able to run it down all the way just hard to tell when it says you are empty when you really arent.
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Well you shouldn't run it down all the way anyways. It is bad for your fuel system, namely your fuel pump. When you run down generally below a 1/4 tank especially when cornering or making turns the fuel left in the tank will slide around more and may cause you to momentarily interupt fuel flow which in the long run could wear out the fuel pump early.
 
Blacknight02GT said:
Well you shouldn't run it down all the way anyways. It is bad for your fuel system, namely your fuel pump. When you run down generally below a 1/4 tank especially when cornering or making turns the fuel left in the tank will slide around more and may cause you to momentarily interupt fuel flow which in the long run could wear out the fuel pump early.
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Well not only that but it also sucks up all the crap that has settled at the bottom of the tank when it runs real low.
 


there wouldnt be crap on the bottom of your tank if you cycled it like it was meant. I love how people never run their tanks empty, b/c all that does is leave all that junk on the bottom.
 
if all you ever do is keep it full all the time then yes.. .but i always run mine at 1/4 tank or less so i dont have this issue...
 


I will say this, at over 100K, I had no visible "crap" in the bottom of my fuel tank.

Well, other than sugar, which is why I dropped it in the first place.
 
Scimmia said:
I will say this, at over 100K, I had no visible "crap" in the bottom of my fuel tank.

Well, other than sugar, which is why I dropped it in the first place.
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omg, who did that? mythbusters did a special on that and the sugar had no effect. i wonder if it would be different between a fuel injected motor though, they tested it on a carbed one and i wonder if it would clog the injectors or just dissolve.
:th_scratchhead:
 
minichopper6hp said:
omg, who did that? mythbusters did a special on that and the sugar had no effect. i wonder if it would be different between a fuel injected motor though, they tested it on a carbed one and i wonder if it would clog the injectors or just dissolve.
:th_scratchhead:
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Some kids out vandalizing random cars on a night when I forgot to put mine in the garage. :mad:

The sugar was still granular, from what I've been able to find, it won't dissolve in gasoline, so it really did nothing other than sit there. With the way our system is routed, very little made it into the tank anyway. I still cleaned it out ASAP, though.
 
Scimmia said:
Some kids out vandalizing random cars on a night when I forgot to put mine in the garage. :mad:

The sugar was still granular, from what I've been able to find, it won't dissolve in gasoline, so it really did nothing other than sit there. With the way our system is routed, very little made it into the tank anyway. I still cleaned it out ASAP, though.
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So if MythBusters did a show on the subject and they said there was no effect but, if sugar doesn't dissolve in gasoline then nothing was proved.
Hmmmm, I thought gas would dissolve sugar.
 


dstout said:
So if MythBusters did a show on the subject and they said there was no effect but, if sugar doesn't dissolve in gasoline then nothing was proved.
Hmmmm, I thought gas would dissolve sugar.
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Yeah, I would have thought so, too, but I still had granular sugar at the bottom of the tank, and I found this on snopes:

Sugar doesn't dissolve in gasoline, as a researcher at Berkeley confirmed in 1994. Forensics professor John Thornton labeled sucrose with radioactive carbon atoms and mixed it with gasoline, then spun the concoction in a centrifuge. After the undissolved particles were removed, the liquid's radiation level was measured to determine how much sucrose had become part of the gasoline. The answer was extremely little: the equivalent of less than a teaspoonful per 15-gallon tank of gas.

snopes.com: Sugar in the Gas Tank
 
I didn't see that episode so I don't know, but they are a couple of smart fella's......I guess it was Busted eh?
 
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