Ok steve i kind of understand lol i will run it so its very very low see what milage i get.how many miles should i be roughly doing.

By the way, try to avoid running it too low.

For those that don't know the best way to calculate MPG, try the following

The best method is to wait until you have just hit the low fuel warning beep.

Then go to the nearest fuel station and fill up to the top, after the nozzle clicks off automatically, wait a second then try again until it stops.

Then reset the trip meter and drive it until it hits the low level warning again and then when you top up do exactly the same as you did last time, fill to he click then wait a second and fill to the click again (no more than this, overfilling is not a good idea)

Note the mileage you have covered and note down the number of litres from the fuel pump

You can then calculate the MPG using the two values

Take the mileage covered and divide that by (the number of litres divided by 4.55)

So if you did 300 miles and it took 30 litres the sums are as follows

30 (the number of litres) divided by 4.55 (approx.) . That gives you the number of gallons (roughly 6.6)

Divide 300 (the miles) by the gallons (6.6) and you have your MPG (45.45 MPG)

Better still, just create an excel spreadsheet that does the following

Put the miles covered in one cell (B1 for example) and the litres in another cell (B2 for example)

and then in another cell (B3 perhaps) put the following =B1/(B2/4.546090)

Then just keep changing B1 to the number of miles since last refill and change B2 to the number of litres

B3 will then give you the MPG every time.

Steve B