mpg on a 318i touring M40

[MATTTT]

hi there
just got it back tonight and all the works been done on it
going to start using it for work this week and was wondering what sort of mileage i should get out of a tank,mostly round town driving?
Seemed a small tank too unless the gauge is dodgy i think it takes about Ԛ£29 to fill it up,seems a bit small
cheers
Matt

[Zayyan]

Over 30mpg should be easy.

I tend to get just under 45mpg in town (5th gear at 30mph etc) and just over 40mpg on average but that's with a slightly smaller engine (316i) and lighter car (2 door).

The 318i cab which would be more comparible to the touring I get 6-7mpg less than the above figures.

All depends on how you drive it!

[stevetigger]

I should think Ԛ£40 in the tank at least!

[Brianmoooore]

Tank should be 62 litres, so either you've got a source of very cheap petrol, or you're not emptying it.
You're propably missreading the fuel gauge - it goes right down past the red painted bit and onto the bit below that before you run out.
There's a warning lamp that lights in the gauge when you get down to six litres. Trust it - I've never seen one that doesn't work - but carry a can of fuel with you, just in case.

[Simon13]

i drove the sport for 30miles with the red light on! when i filled it up i put in 61.05 litres into a 62litre tank! tank was full up to the top of the filler neck

[stevetigger]

Thats about as far as I have gone on the light!

[Brianmoooore]

i drove the sport for 30miles with the red light on! when i filled it up i put in 61.05 litres into a 62litre tank! tank was full up to the top of the filler neck

Don't push it that far too often - you'll knacker the fuel pump through cavitation.

[MATTTT]

is the warning light independant from the guage as i recon mines reading a bit low as ive filled it up when i picked it up and only got Ԛ£29 in it
weird thing is it only read slightly under full afterwards
i guess now i know it could have gone lower when it was empty as it was just on the empty line and not below like you say
Its a pain all these mpg,does anyone know how many miles you would get on say Ԛ£40?, as thats the size of the tank on the car were going to be replacing and i know how much that car can do.

other half wont be too happy if its a lot worse ! lol
as shes paying
Matt

[Brianmoooore]

Fuel level light is worked by a seperate switch inside the fuel level cannister attached to the fuel pump, but,I assume, using the same float.
E30 fuel tanks are either 55 or 62 litres.

[jonbuoy]

I was told that the Saloon's have a 45 litre tank and the Tourer has a 55litre tank. I've only ever been able to stick 45 litre's in mine

aka: 318i lux 4 door

[Brianmoooore]

. I've only ever been able to stick 45 litre's in mine

It'll only take 55 litres if you empty it first. Should take 49 litres from when the fuel light comes on.