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post #1 of 17 (permalink) Old 30th December 2006 Thread Starter
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How much petrol is left

Hello, new to the forum and was after some advice.

When the petrol warning light comes on, how much petrol is likely to be left? How many miles would this give me?

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post #2 of 17 (permalink) Old 30th December 2006
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This will vary to a certain extent but should be somewhere between 5 & 10 litres.
I always fill up as soon as possible after the light comes on to be on the safe side ( usually within 10 miles) and ususally try to fill up after approx 550 miles as I know the light won't come on until about 580 - 600 miles.
If you let the tank get too empty you run the risk of getting "dirt" in the fuel pipes etc which can cause problems with the smooth running of the engine.

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post #3 of 17 (permalink) Old 30th December 2006 Thread Starter
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Thanks for that SportTourer. How many miles would I get for that amount of fuel?

I am a complete ignoramous when it comes to car stuff!!
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post #4 of 17 (permalink) Old 30th December 2006
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Remember this is a general rule of thumb as your fuel economy is not a constant and will vary for a number of factors. But the method is exactly the same, regardless.
1. Fill your tank to maximum (knowing what your tank's capacity is - say 50 litres).
2. Re-set your trip mileometer before setting off.
3. Drive the car as you would normally until the fuel light illuminates, then refuel to maximum (noting the amount of fuel you put in, and the distance you have travelled).
4. Time for the calculation, say you put in 40 litres when refuelling, and that you covered say, 450 miles, that means that every 1 litre took you 450/40 = 11.25 miles. You know you had 10 litres left when you refuelled, so you could have (theoretically) travelled a further 112.5 miles before the tank was completely drained.

Remember, as previously stated, this is not advised to put into practice, as dirt and air locks in the fuel system can cause major problems if the tank runs low/empty.

You should after a couple of fills have an idea how far you should be able to comfortably travel on a tank, and plan your fuel stops accordingly.

This job should never be complete - the day I think I've done it all, is the day I resign.

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post #5 of 17 (permalink) Old 31st December 2006
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