A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

Gas question. No I'm not complaining about prices

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Old Jun 2, 2008 | 10:58 PM
  #1  
Stampy's Avatar
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From: Chicago
Default Gas question. No I'm not complaining about prices

On a 01 4.2 when the gas light comes on, how much gas is left? Last night driving home the light came on and it said 50 miles to empty for what thats worth. I was still on the first red line on the gauge, so I wasn't worried. Got in the car this morning and it said 0 miles until empty and I was on the last redline on the gauge. I drive three blocks down the road and fill up. I only put in 19.6 gallons. This has happened to me like 5 times now. So what does our 22 gallon tank have in it when the light comes on? If I was on the last redline on the gauge, shouldn't I have put in more than 19.6? Did some searching but found no real answers. Thanks all
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Old Jun 2, 2008 | 11:14 PM
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DD_(in Germany)'s Avatar
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Default Is your driveway level/flat? The sensor and outlet in gas tanks is usually at the rear.

So if your driveway is a little "downhill", then it can under-read. When low on fuel, and parking on an incline, it's best to park so that car is facing uphill. You've got more chance of it starting.
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Old Jun 2, 2008 | 11:26 PM
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Egil A64.2s - S6's Avatar
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Default There is some reserve, as you found out.

The gas tank has about a 3 gallon reserve, +/-
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Old Jun 3, 2008 | 11:52 AM
  #4  
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Default Yeah my garage is flat. I just thought it was kind of funky...

I really I had a little more accuracy with this thing. Not so much for me, but for when my fiance is driving it. She freaks out about that crap.
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Old Jun 3, 2008 | 01:46 PM
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Default

A cold car burns more fuel to heat up the catalytic converters, hence the off reading
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Old Jun 3, 2008 | 04:47 PM
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Default

Happens to me all the time, exactly as you described. Normal in these cars.
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