wheres my fuel going

[e30-320i]

filled my tank to the brim last week and driving sensibly i just about managed to squeeze 180 out of it with both town and motorway driving.
i have replaced the two fuel lines in the engine bay there is no smell of petrol and i cant see any leaks whats going on surely i should get more miles from 40 odd quid of petrol
any ideas

[Dan318-is]

what car?

im getting 180 from 30 quid an icv replaced senders AFm the lot

i think its the price of fuel mate!

[dazleeds]

i get about 55miles to a tenna but i am lead footed although when i tickle the car round this dosent seem to improve at all

but my exhaist does smell like cars running a bit rich and is in need of a service so im hoping when this is done i may see some improvement

[RevBillyG]

Most of it's going into the chancellor's pocket m8

[e30-320i]

what car?

im getting 180 from 30 quid an icv replaced senders AFm the lot

i think its the price of fuel mate!

its a 320i maybe its about right then just pisses my off when the needle under the speedo is sitting on 30mpg most of the time




i agree with you though Daz it doesn't seem to get any worse if i give it some although the mpg guage dissapears out the window

[dazleeds]

yours sits at 30mpg

im lucky if mines above 20 ever

the last 2 or 3 320s ive had have all been somilar on economy

but my old bplate 320i auto that i had a couple years ago was a hell of a lot better on juice and i often got 90+to a tenna

im guessing its the cost of fuel thats made such a big difference

and the 325i i had last year also gave me 80/90 to a tenna

thinking of putting my 323 engine in
even that was better last time i drove her last year did 112miles to bout 12quid on a mad dash from nottingham to leeds

[e30-320i]

i only filled it up to see how many miles i could get from it.i usually put Ԛ£20 a week and that'll get me about 100 mile(guage sitting on 30mpg the whole time laughing at me)

[e30-320i]

oh well i suppose i may as well drop a 2.5/2.7 in then it cant be much worse on fuel

[fuzzy]

you should try 20-22 mpg, going down to 15mpg when driving hard, ive seen me spend Ԛ£70 in a week on fuel

[e30-320i]

that sounds bad but i could handle that kind of consumption if i had that power

[Martinaston]

I was getting similar figures so resorted to getting these cleaned and will see how it goes next week on the mpg. So far it's running smoother, starts up a bit quicker and the exhaust has even stopped pissing on the floor

[e30-320i]

what engine you got
how much was inj cleaning

[peejay]

Hi all, filled up yesterday having done 351 miles on last tank full ! Thats my best return yet.

I think i've mentioned it before that I have an ekotek power valve fitted, it doesnt really improve bhp that much but it does also claim to improve fuel consumption and i think 351 miles out of 55 litres is pretty good going.

Peejay

[e30-320i]

what
is it a diesel

[Martinaston]

It's a standard 320 (motronic ecu).

I'm still in two minds as to weather it was worth gettting them cleaned as i still have two that are noisy and i'm not happy about it because the twit at the garage said they were all fine. So when i asked him if the flow rate was the same on them all and he agreed, i take it he was talking bollocks then as well

But Ԛ£125 to have them cleaned compared to over double that for a new set i can live with it for now, provided it makes a difference.
I'll work out how well it's doing next week after i've had the CO re-set and like a twit i serviced it as well so now i won't know how much of the improvment is down to the injectors and how much is due to a new air filter and plugs.

[dazleeds]

surely you jest???

how the fook are you getting that sort of economy??

you sure its not a 16?

[e30-320i]

thats nearly double the mpg to what i'm getting is that motorway miles and whats the milage on yours my 320 has done 116000

[Martinaston]

peejay, you sure your not working it out in kilometer's

[JoeP]

I always get about 300 miles to a tank but I do most of my driving at 30mpg with the odd thrash now and then.
e30-320i, where in Suffolk are you from?

[e30-320i]

300 miles to a tank i would be better off with a 2.5 then.
i live in felixstowe near ipswich it cant be far from you although i've never heard of waveney valley

[Brianmoooore]

oh well i suppose i may as well drop a 2.5/2.7 in then it cant be much worse on fuel

Shouldn't be any worse MPG, as long as you change the diff as well.
That's the trouble with 320s - 325 MPG with 318 (maybe slightly better) performance. Only thing going for then is the straight six sound and smoothness.

[e30-320i]

That's the trouble with 320s - 325 MPG with 318 (maybe slightly better) performance. Only thing going for then is the straight six sound and smoothness.[/quote]

i'd have to agree with that mate i'm still lovin it though and it does sound good IMO

[glenn]

i've just ran out of fuel in the project car, again!
but i dont mind as i want to try shell optimax for the track day, e39 m5 users swear by it, we'll see.
my 330d, the last time i used it on a run, half urban, half motorway, it returned 52mpg.
i wasn't trying to get a high mpg as i was in convoy to a track day.
i think if i was trying, i could of got 60mpg.

[Motorhole]

I certainly notice a difference with the way I drive (1988 320i, 113,000 miles). I got nearly 40mpg when sticking rigidly to 70mph on the motorways en-route to the Nurburgring (And also did Lancaster - Brighton on less than Ԛ£40, inlcuding a diversion through Wembly). Anything else though and it drinks. Economy drops quite significantly by increaseing motorway speed to 80mph. And I got 6 laps (< 80 miles) of the 'ring on a full tank!

Also check where your fuel filler pipe goes into the tank. They can rot here and leak slightly when the tank is full.

The 325i is actually slightly more economical than the 320i (According to the owner's manual). Makes me wonder why they ever made the 320i Its slower, yet less economical, with only marginal performance benefit over the far more economical 318i.

[320Touring]

I certainly notice a difference with the way I drive (1988 320i, 113,000 miles). I got nearly 40mpg when sticking rigidly to 70mph on the motorways en-route to the Nurburgring (And also did Lancaster - Brighton on less than Ԛ£40, inlcuding a diversion through Wembly). Anything else though and it drinks. Economy drops quite significantly by increaseing motorway speed to 80mph. And I got 6 laps (< 80 miles) of the 'ring on a full tank!

Also check where your fuel filler pipe goes into the tank. They can rot here and leak slightly when the tank is full.

The 325i is actually slightly more economical than the 320i (According to the owner's manual). Makes me wonder why they ever made the 320i Its slower, yet less economical, with only marginal performance benefit over the far more economical 318i.

thats good MPG's from your 320i!

reason the 320i is thirsty is because it has a "flathead" combustion chamber to increase torque, as opposed to the 325i more efficient "hemi" design.

as for the 320i being " unrequired" it was originally designed as a tax/insurance break model-has lower tax implications in several EU countries due to smaller capacity and is a lower insurance group.

To get this lower tax and insurance rating BMW "strangled" the 320i to some extent. If allowed to breathe properly (e.g Big Bore Throttle Body (BBTB) some useful gains can be found.

Plus gotta love the smoothness of the m20b20!!!

[peejay]

surely you jest???

how the fook are you getting that sort of economy??

you sure its not a 16?

I jest you not Daz ! I've always got over 300 since I've had the Ekotec valve on it. 325i Motorsport Convertible travelling 60+ miles a day on A46 (fast road !) always exceed 100mph at least twice a day so i drive it like it should be driven, I dont think i ever got more than 260 miles out of my previous tintop sport that I had. Must be lucky I guess...

Peejay

[e30-320i]

peejay what were you getting before you fitted the ekotek

[Dan318-is]

i also put 20 quid in an get about 100 miles

got 98 last time but i was killing it round the motorways and drifting all saturday nite

i agree with teh meter, mine sits at 50 a lot of the time on the way to college but it still rinses fuel

im hoping a service will also improve mine but 30 quid is only seeing me about 175 miles at the mo!

[peejay]

peejay what were you getting before you fitted the ekotek

As I recall 280ish, however I didnt really start monitoring it closely until i fitted this valve.

Peejay.

[e30-320i]

maybe your engines just in better condition and i have fitted the 2.5 throttle body which must affect it quite a bit.
the most worrying thing is when i had it checked out the garage said the mix was way too LEAN i nearly collapsed.

[dazleeds]

disagree mate
mine hasnt changed since i fitted the 325tb
was crap before and still crap now

prob has since i fitted chip last week tho
been flat out to 7k at every opportunity

never mind got a wild 323 engine going in soon

[e30-320i]

i'm deffinatly thinking engine swap is the way to go now i just dont know if the insurance will be sensible as i've only been driving just over a year although i am (cough) over 25 so that should help a bit.

[dazleeds]

do it mate

im hoping for a 180bhp from the 323 engine when i get to it
got most of the bits needed already just need some head work doing
schrick cam poss 6branch and woohhooo

323 thats slaps up 325s

[e30-320i]

sounds should be pretty nippy then
i reckon i'll start gathering parts bit by bit build up an engine as and when i got time then just drop it in when its ready....aint really no hurry the longer it takes the more driving experience i'll have to cut my insurance.



ps...
do you live on here or what mate:)

[peejay]

UPDATE.

Petrol light just starting to flicker.... 311 miles on tripometer. Thats about normal, I'll need to fill up now on the way home.

Peejay.