Author Topic: MPG - How? (Read 616 times)

Jamieg285 · « **on:** September 09, 2006, 12:02:08 pm »

I really ought to know this, but how do I calculate my MPG? I've done the 'fill tank to brim, drive, refill noting mileage and amount of fuel'.

What do I do with them to get my fuel (lack of) economy?

Incursus · « **Reply #1 on:** September 09, 2006, 01:40:21 pm »

Work out how much fuel you used, in gallons, then divide by how many miles you did.

or use this http://www.geocities.com/mpgcalc/

sixpack2639 · « **Reply #2 on:** September 09, 2006, 02:05:45 pm »

Miles traveled / Gallons used = MPG (in US gallons)

ex. 300 / 15 = 20

To get a true feel of your MPG I would check this 3 times and average the 3.

ex. 345 / 17.2 = 20.06
313 / 16.5 = 18.97
320 / 15.7 = 20.38

20.06 + 18.97 + 20.38 = 59.41

59.41 / 3 = 19.8

F Body · « **Reply #3 on:** September 09, 2006, 03:21:58 pm »

The way you drive I wouldn't bother

Divide the number of litres by 4.54 = UK gallons.

Then divide you mileage by the number of gallons , the most acurate way is to brim the tank, drive until nearly empty and then brim it again and see how many litres you have used ?

Jamieg285 · « **Reply #4 on:** September 09, 2006, 04:01:41 pm »

Quoting: F Body

Divide the number of litres by 4.54 = UK gallons.

That's the key bit of info I needed.

Thanks guys.