Miles per gallon...

MonkeyLover · 03-06-2008, 14:20

Just found a website which calculates the miles per gallon on your car...

www.guycroft.clara.net/utils/mpg.html

its really good.

I get on average 32 mpg - mostly short journeys, I have a Corsa 1.2 - 9 years old. Anyone know if this is a good mpg? What's your mpg????

Thanks

willman · 03-06-2008, 14:23

I don't have the info. to caaculate mine. I did however learn that a US gallon is only 4/5ths of a UK one, which i didn't know before.

alex3659 · 03-06-2008, 14:27

my 1800 mondeo estate's doing 36.6

Darbees · 03-06-2008, 14:40

I can't believe that anyone needs a website to do such a simple calculation.

Zomoniac · 03-06-2008, 14:56

Quote:

Originally Posted by Darbees

I can't believe that anyone needs a website to do such a simple calculation.

They probably wouldn't were it not for the absurd system we have where distance is measured in miles, efficiency is measured in mpg but fuel is measured in litres.

Zomoniac · 03-06-2008, 14:59

Quote:

Originally Posted by MonkeyLover

Just found a website which calculates the miles per gallon on your car...

www.guycroft.clara.net/utils/mpg.html

its really good.

I get on average 32 mpg - mostly short journeys, I have a Corsa 1.2 - 9 years old. Anyone know if this is a good mpg? What's your mpg????

Thanks

It's alright for a petrol, but not great. My 54 plate Clio (1.5 diesel 100bhp version) claims on the specs it does a 66 average, which is just wrong. My average tank is between 40 and 45, but on those rare occasions I'm on country roads and doing an average of pretty much bang on 56mph in 5th then I can get it to average above 60, but it's rare. A 70-80mph motorway run will average around 45.

Weathergirl · 03-06-2008, 15:03

My car tells me what im doing with the trip computer!

Darbees · 03-06-2008, 15:04

Quote:

Originally Posted by Zomoniac

They probably wouldn't were it not for the absurd system we have where distance is measured in miles, efficiency is measured in mpg but fuel is measured in litres.

Here's one that needs a bit more thought. I drove into US from Canada and petrol there was in $/US gallon whereas in Canada it was $CAN/litre and I was paying in $CAN In order to try work out how much it cost to compare with here and in Canada I had to convert US dollars into Canadian dollars and pounds, US gallons into litres and imp gallons and kilometres into miles. By the time I'd reckoned it up and rounded figures up and down the numbers were completely inaccurate. No point anyway cos it didn't effect the price!

Little Buzz · 03-06-2008, 15:16

The claimed figures for petrol cars seem hopelessly optimistic - my car is supposed to be 37mpg but I rarely get above 30.

The diesel that preceded it was listed at 41mpg and did 41mpg.

Ousetunes · 03-06-2008, 15:21

I drive an X Type Jag and rarely get more than 220 miles out of £55 (although it prefers to stretch its legs than totter round the city).

Darbees · 03-06-2008, 15:25

Quote:

Originally Posted by Weathergirl

My car tells me what im doing with the trip computer!

They are usually pretty inaccurate because it's a calculation in cars ecu but not actually measuring the amount of fuel going through the system. Try working it out mathematically in actual fuel used and compare it.

Annoni_mouse · 03-06-2008, 15:38

Quote:

Originally Posted by Little Buzz

The claimed figures for petrol cars seem hopelessly optimistic - my car is supposed to be 37mpg but I rarely get above 30.

The diesel that preceded it was listed at 41mpg and did 41mpg.

I think your right.

My car (2002 Corsa 1.2 Easytronic Semi-Auto) has book figures of 42mpg, which I can match or surpass on long runs. However, seeing as most of my driving is town driving with lots of stop-start, short journeys, I'm lucky to get much above 32-34mpg.

The trouble is, there are so many factors that effect fuel usage that’s its practically impossible to come up with an exact figure of how many mpg’s you should get.

MonkeyLover · 03-06-2008, 16:06

Quote:

Originally Posted by Weathergirl

My car tells me what im doing with the trip computer!

thats good!

MonkeyLover · 03-06-2008, 16:10

Quote:

Originally Posted by Zomoniac

It's alright for a petrol, but not great. My 54 plate Clio (1.5 diesel 100bhp version) claims on the specs it does a 66 average, which is just wrong. My average tank is between 40 and 45, but on those rare occasions I'm on country roads and doing an average of pretty much bang on 56mph in 5th then I can get it to average above 60, but it's rare. A 70-80mph motorway run will average around 45.

Thank you.

laineyiow · 03-06-2008, 16:34

I just look at my trip counter and it tells me!

Little Buzz · 03-06-2008, 16:37

Miles per gallon = miles/(litres/4.54609) - roughly

Darbees · 03-06-2008, 16:40

Quote:

Originally Posted by Little Buzz

Miles per gallon = miles/(litres/4.54609) - roughly

Roughly to nearest hundred thousandth of a litre, that is.

Little Buzz · 03-06-2008, 16:43

Just didn't want anyone pedantic telling me it wasn't absolutely exact :-)

Darbees · 03-06-2008, 16:47

Quote:

Originally Posted by Little Buzz

Just didn't want anyone pedantic telling me it wasn't absolutely exact :-)

It wasn't, 4.54609188

Little Buzz · 03-06-2008, 16:48

Give or take a few molecules...