Gas Gauge Accuracy
#1
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Gas Gauge Accuracy
My 2004 S is a remarkable and flawless car-- except for one thing. When the gas gauge says the tank is completely empty, I can only pump about 10.5 gallons into the car. As I read the owner's manual, that means I still have three gallons left! I've heard of having a bit in reserve but not more than 20 percent of capacity!
Forgive me if this is a well worn topic, but is this a common problem? In any case, isn't this something that should be repaired?
Thanks,
Rick
Forgive me if this is a well worn topic, but is this a common problem? In any case, isn't this something that should be repaired?
Thanks,
Rick
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Originally Posted by RER,Aug 3 2004, 12:42 PM
My 2004 S is a remarkable and flawless car-- except for one thing. When the gas gauge says the tank is completely empty, I can only pump about 10.5 gallons into the car. As I read the owner's manual, that means I still have three gallons left! I've heard of having a bit in reserve but not more than 20 percent of capacity!
Forgive me if this is a well worn topic, but is this a common problem? In any case, isn't this something that should be repaired?
Thanks,
Rick
Forgive me if this is a well worn topic, but is this a common problem? In any case, isn't this something that should be repaired?
Thanks,
Rick
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Glad to see this thread, I have had my MY04 S for 3 weeks now and have been trying to remind myself to ask about this. Yesterday I had three ticks left in the tank (I was on the highway not to close to a gas station). In less than 20 miles I was on empty (light on, no ticks on the gauge). I went another 15 miles or so on empty and was only able to put 10.8 Gallons in. Glad to here this is a common thing. So is the consensus that you can get 40 - 60 more miles once the light comes on. Has anyone tested this (on purpose or on Accident).
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The 3 gallon reserve is just par for the course. Don't want people stranded on those long highway stretches between gas stations
One thing to look out for though, is false high fuel indications because of sloshing gas in hard turns. I get this lapping on the track. The tank would show no drop in fuel just after a session, but sit in the pits for while and all of a sudden 1/4-1/2 a tank "dissapears". I suppose this could happen in very agressive and twisty canyon carving too.
One thing to look out for though, is false high fuel indications because of sloshing gas in hard turns. I get this lapping on the track. The tank would show no drop in fuel just after a session, but sit in the pits for while and all of a sudden 1/4-1/2 a tank "dissapears". I suppose this could happen in very agressive and twisty canyon carving too.
#7
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I can also put about 10-10.5 gallons into the car after the last bar goes away. As long as it's consistent from tank to tank, which it is, it's not a problem.
BTW, the gas warning light on my Cayenne S goes on when the computer says I have 60 miles to go. Even after the 60 goes to 0, I can only put 22-23 gallons. The manual says the tank size is a whopping 26 gallons with 3-4 gallons of emergency reserve! On my 996, I can only put 13-14 gallons in after the computer says zero. The tank size is ~16-17.
BTW, the gas warning light on my Cayenne S goes on when the computer says I have 60 miles to go. Even after the 60 goes to 0, I can only put 22-23 gallons. The manual says the tank size is a whopping 26 gallons with 3-4 gallons of emergency reserve! On my 996, I can only put 13-14 gallons in after the computer says zero. The tank size is ~16-17.
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