What MPG/Mileage do you get in your car?

jobdone1

I did the garage test bought fuel from esso lost around 5mpg compared to BP 1.4 DIESEL 206 53 mpg round town 68 on a run O AND £30 TAX BRILLIANT

Gloomendoom

forgotmyname wrote: »

More speed in the same gear means more fuel.

Not in my car.. 6th gear only starts to work above 60mph. Although it pulls well and will climb hills easily at 50mph in 6th gear it uses more fuel.


BHP = Torque x RPM / 5252 doesnt work for my car. I seem to have 84bhp if i use peak torque or over 200 if i use the redline figure? Its actually a 130.

What is the torque output of the engine at max rpm and what is the max rpm?

tim9966

About 25 to 26 mpg in a Focus ST.

Get just under 300 miles from 50 litres or so. (£65)

forgotmyname

243 ft/lb torque @ 1900rpm. Max revs (continuous) 4800 or 5000 intermittent.

Max torque at max rpm errr. That i dont have figures for. Is that why the figures dont work?

suki1964

Johno100 wrote: »

I don't get much more than 20mpg in my 2010 Focus ST when I am ragging it around town, still great fun though.

Broke my heart trading mine in for a more sensible 54 mpg 2l BMW 1.6d

Cornucopia

50mpg long-term average from 1.5 dCi Renault Megane Conv

(gets 550-700 miles on a tankful).

epninety

forgotmyname wrote: »

Max torque at max rpm errr. That i dont have figures for. Is that why the figures dont work?

Exactly. you have to know any two values simultaneously to calculate the third. Peak torque and peak power don't usually occur at the same rpm, though it's not impossible. So from your numbers, you are making around 88bhp at peak torque, but only around 145lb-ft at max power, assuming that peak lies close to the rev limit.

Either that, or you are one of the hundreds of lucky petrolheads on the internet who own cars that defy the laws of physics :rotfl:

benwilliamsuk

This message has been removed.

steve-L

fivetide wrote: »

My Merc C Class averages about 33mpg in a mix of motorway and city traffic. Not too bad for a hefty car.

Steve, my BMW had a very optimistic OBC. I looked at the 330d and found this useful, real world figures from the bimmerforum uk. Looks like the 45mpg is much more like it.

Didn't repeat the figures ....
Yep, must be some of that..... the question is for me, is the discrepancy linear. As I said I checked it brim to brim twice and it was quite close... (not exact but close)

According to the ODB I can influence the MPG very[/] significantly by driving style.

As you probably realise its quite seductive to have the power and not tap it from time to time, especially with the smooth V6 delivery. What I mean is doing a brim to brim whilst maintaining economic driving is something you'd have to plan.....

The whole thing with the big tuned diesels is simply how much fuel you can dump and burn.... (well perhaps not the whole thing but major)... as such, I do like to drive economically ....

There is quite a discrepancy across those drivers....

unclestarfish-E46...............330D MSport Touring Auto Gies 24-28mpg around town and when wife drives it (school run, mothers, shops) On long runs with family (2 young kids) worcester - Portsmouth nerver bettered 38mpg even when driving sensibly and using the Cruise control on dual carriageways and m-ways!

compared to closest to my car.....

Bensee........................E90 330D (2005 - 231bhp -> 277bhp/440lb/ft-ish) - 30-36mpg around town, 46/47mpg motorway (door to door).

Obviously there are different remaps..... but Bensee doesn't say which or give a discrimination between brim to brim or ODB. On the otherhand, unclestarfish (although earlier engine/auto/no-remap) I struggle to see how he only got 38MPG Worcester-Portsmouth ???? (Even if the estate was full)

A recent subjective test in my other car (2005 Honda Accord 2.2 TDCI with 180k) my OH drove from Woking to Clitheroe and used a little over 1/2 tank from brim full.... (lets say 245miles with 35l/65 or 7.7G) so 32 MPG.
I drove back from Leeds (filled up) Via Clitheroe (overnight) on a fair but less than 1/2 tank ... (lets say 290 miles with 30l or 6.6G = 44 MPG although due to traffic/ we ended up detouring and going around/through Coventry centre.

I probably had a higher motorway speed and the whole point of me driving back was to demonstrate to my partner how she could use a lot less fuel just by driving style and anticipating the traffic not requiring to brake and accelerating slowly when necessary.

This was the same car, load etc. and weather as worse coming back....

I think the 330D is actually capable of much bigger differences due to driving style.... however I struggle to keep driving style consistent over a tank! (as I suspect many of those from bimmer forums do)

Happychappy

Audi Q5 2.0 td, 28 knocking around on local journeys, 38 - 40 on a run

At work we have BMW 330d, 530d and Audi A4 3.0 td, all are manual gearbox, but now moving to auto, and all average around the same give or take 29-30 mpg over a three month period, month in month out which includes motorway, dual carriageway, local and many hours ticking over stationary, average miles per car around 50-60k per year