MPG equation
 

Hi does any body know the equation for working out the MPG on a vehicle
I know it involves milage and fuel purchased but cant remember the exact equation

Many thanks Gossy

miles done divided by gallons used.

Convert litres to gallons by dividing litres by 4.545454

I tend to cheat and use this handly little mpg util ... mainly coz I'm lazy :D

Or, if you're lazy, plug the number of miles/litres into an MPG Calc. :)

EDIT - Mikkk, you must've read my mind. :)

Interesting. I'm getting 25mpg on normal roads (mainly non-motorway) while driving pretty much like a granny but with the odd boost.

How many gallons can a tank fold?

Hehe, just pipped you to it. One day I'll get round to writing my own and build in some pricing options so you can see what it's actually costing you mile per smile :D

This is why ScoobyNet is great: got a problem, ask a question, get some answers & friendly banter on the side to brighten your day :thumb:

ooops, just realised I put in the cost of the petrol. Doh :cuckoo:

Well, according to the Subaru website:
'04 STi Type UK holds 60 litres
'04 Forester holds 60 litres
'04 Impreza WRX holds 60 litres
'04 Impreza GX holds 50 litres
'04 Legacy Saloon holds 64 litres
'04 Legacy Sports Tourer holds 64 litres
'04 Outback holds 64 litres
...and that good for nothing over hyped tart of a WR1* holds 60 litres

Marvellous thing this internet :thumb:



*see if GangstaSmurf finds that one :D

thanks guys
Thats why i love this site as mikkk said got a prob ask it on scoobynet someone is bound to know the ansa and you can chat about it too :) or argue about if thats your choice :D:D:D

Has anyone out there actually got 60 litres out of the tank of a WR1/03STi/04STi? The best I've got out of my MY03 STi is 58 litres - and that was when I ran the tank dry a mile short of the filling station I was heading for :( (and thanks to the guy in the Secnic who gave me a lift!). It was surging 10 miles before then...

2004 STI :
Just checked my first tank of optimax after running in - varied motoring with 50% slow runs to work constant 40,50 mph (not stop/start) and 30% a couple of fast back road sessions the rest about town.
result 20MPG - not overly impressed, was banking on all the steady restained sessions evening up the balance a bit..
what ever car I have had before (Volvo T4 - average 32!) have always been able to get good consumption when driven carefully - this seems to drink it what ever and absolutely binges like a larger lass when blasting.

03WRX - filled up about 2 minutes after getting the red light, and put exactly 50 litres in.

I had a little excel sheet to calculate MPG and (mainly) monthly petrol costs. Did it for about 6 months to get a good picture, then stopped. Usually averaged around 23-28mpg.

That was a year ago, should probably feed in the new petrol prices to see how much my bill has gone up.

Though if Gossy had asked me, he would've got the same answers in the office at which he works :rolleyes:


:D

Biggest concern so far after coming from the MY01. Best I had on that was 31 but typically 26 to 28 motorway - 22 to 24 combined.

First tank on STI Optimax - 20mpg, second tank including 140 at 70 on motorway 22mpg - Just hoping she is running rich until the first service but at this rate aren't going to get much more than 220 miles on a tank.

Miles travelled divided by no of litres used multiplied by 4.54 = MPG

Les

I've managed (albeit driving like a nervous nun) to squeeze 29mpg out of my MY03 STi Type UK on a nice long run from Bristol to Stoke and back (~260 miles). You can get reasonable MPG figures, you just have to accept the fact that the more you play with the 'fun' pedal the more the ride will cost :idea:

I moved to a Scoob from a classic range rover (3.5 v8 EFi) which when 'cruising' on the motorway at a respectable 75mph could deliver a soul shattering 13mpg. So from my point of view the Scoob is very good on fuel consumption and smiles per mile :D

I do the same thing with the spreadsheet. Been running since Dec last year when I got the bus. Average over that time is 22.53 MPG. Best ever tankful was 27.93 and the worst 9.28 :eek:

Scary thing is that's £2,654.23 of Optimax in 11 months!