Hi
Just an update on new car it had 5 miles on the clock sales person put £8.50 petrol in I filled it up another £40.50 so tank was full now 2 weeks on reads 1/2 tank and 102 on the clock not sure how you measure miles to the gallon but it reads s---- to me lol .
A couple of points: You have a new car with a tight engine and going by your mileage, you are probably using it frequently for short journeys? The car barely has a chance for the oil to warm up, so it will be using more fuel than 'normal'
Most petrol guages are not linear, i.e. they may drop faster between full and half than they do between half and empty (or vice versa).
The only way to calculate true consumption is to:
- Fill up, note down mileage or re-set trip meter
- Drive around as normal until the tank needs re-filling
- Brim the tank until the pump cuts out, note mileage and litres added.
Calculate fuel consumption as follows:
(End mileage - Start mileage) / (Litres added divided by 4.546) = MPG.
Once you've done this a few times, you will have an idea of the real MPG you are getting.
Of course, if you're an anorac like me, you can always set up a spreadsheet or use one of the online calculators like Fuely.
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