E91 325D Touring.. 3 litre diesel.. ~43 MPG

Stage 1 250bhp golf Gti – 28mpg round town, 35mpg motorway, 40mpg country lane 50mph traffic

Mini cooper diesel – 53mpg round town, 64mpg motorway, 78mpg country lane 50mph traffic

2001 Vectra 2.0 Diesel (Low tune model), 43mpg Ragged to hell with bikes on the roof and tons of luggage. 48-53mpg 30/70 urban/motorway driving. Usually cruise between 75-80 mph. Fast driving style but sympathetic to economy, (light on the brakes).

who cares

why do you care about this

have a word with yourself look what you have become

I did it my self molgrips

Fuel and air filters didnt look like they had been changed for 40k surprised it ran at all really

Oil change in engine , gear box and diffs were all pretty good though.

Changed glow plugs and the Boost diaphragm as well ( the latter which will be what gave it the mpg boost as it was torn)

Molgrips you sound like swiss tony!

Achieving the perfect mpg is rather like making love to a beautiful woman etc 😀

Don’t know whether to be impressed or saddened by the levels of geekery with all these mpgs being rolled off the tongue… do you all keep spreadsheets or something?

1991 Toyota Celica GT4, 15mpg driven quietly.

Probably 5 mpg driven enthusiastically.

Although it does have just over 400 bhp and a whopping great big garret turbo on it 😀

I have no idea, I never have done, it’s simply not important. It’s my car, I have to drive it, I’ll try and get a more economical one next time, whenever that is. Can’t be doing with this sort of detail in life.

Bugatti Veyron, 4.57mpg – though it does a bit better if I stick to the speed limits.

Honda Accord CDTi. 50mpg most of the time. A bit less if I skin it.

My wife has an AUDI A3 Tdi. That’s better on mpg if it’s driven slowly (like she does), probably about 55mpg. It’s a lot worse if I drive it because I nail it everywhere. It’s like a smokey go-kart. Lots of fun, goes round roundabouts really quickly and will leave proper sports cars while it’s in the turbo zone.

Wozza – Member
E46 330d Tourer, give it some and it’ll do 40mpg-ish combined, drive it sensibly on the motorway and it’ll do 56.8mpg average at 73mph.

Bollox! BMW themselves only claim 44.8mpg (auto) and 48mpg(man) for extra urban. Even hypermilers struggle to get those figures from a 330d.

My Mondeo ST TDCI very rarely dropped below 50mpg in the 18 months (and 35k miles) I owned it.

My Octy vRS I have now though, with bikes on the roof hammering up to Scotland etc……. I’d rather not look.

Of course the question is: why the chuff do we measure mpg when we sell petrol in litres?

Is to makes people thinks they get more for their money.

True. If you calculate Miles Per Litre, it’s often very depressing.

Old school Focus 1.8 oil burning stove seems to do 50mpg per tank for a mixture of drives up the motorway to Lakes and a few local trips round town. I drive at somewhere between 70 and 80 on the motorway unless I am being a tw@ and it creeps up to 90+

My old RGV250 does 26 mpg and drinks a bottle of £14 a litre fully synthetic two stroke oil on top every 6 tank fulls. But it needs warming up and then gets mercilessly thrashed down the lanes and is only geared for 99mph revving out in 6th.

My XBR650 special gets over 55mpg normally and if you tickle it along for a gentle cruise this creeps up to 65-70mpg.

Previous cars did the following
Mondeo 20 tddi 43mpg best ever but normally just 40 if you weren’t trying.
Pug 806 2.0 HDi 38 mpg best ever and more like 35
Primera 2.0 petrol 34mpg
Pug 405 1.9td 45 mpg
Escort 1.8td 45mpg

randomjeremy – Member

who cares

why do you care about this

have a word with yourself look what you have become

you could also ask yourself why you bothered to post the above on a post that is clearly about mpg?

😉

Rs4-I choose to ignore my l/100km but BP send me Xmas cards

When you are spending over £3000 a year on fuel, it makes a difference. There are things I’d rather spend my money on…

Shame Bikebuoy has not replyed…

Oh, and my commute is 95% motorway.

This is reassuring, looks like I could maybe have something not right with the car that means it could be a little more efficient going on others figures; 2001 Passat 130 TDI estate. I get 40mpg average, 45mpg if I really try and stick to about 60mph and accelerate really softly etc. Yes, it’s regularly serviced and the tyres have air in them, seems to run OK too.

Fiat Bravo 1.6 ECO diesel….. managed 65 on a long motorway run recently (350 miles) – but driving at 65… if I slow down more it will definitely go higher…

Seems to be averaging overall 62ish…. driving carefully….

Corsa 1.3 diesel = 48.35mpg average over the last 8 months.. getting 478.6miles per tank. Quoted figure for the car is 68 combined. It’s hilly around here but even if I drive like my mum I’ve never hit 50 as yet.

Data from ‘Road Trip’ app on my phone. I’ve got data going back 2 years. My previous Astra was getting 34.66mpg average.

How are people getting their figures? From the live reading off the car computer as you are driving or by recording data?

Ohh sorry, have I missed something..

Erm…
Car 1 – Prius ’10
Van 1 – Renault Kangoo 70Dci ’08

You must understand I drive like an old man with both blinkers on and velvet slippers these days, rarely over 70mph, can be found in the slow lane most days.

The Prius was an “eco” choice, having spent £’000’s on fuel with work/n’ that in the recent past I decided I’d done enough to keep Shell digging wells for the foreseable, plus I’d had enough of Uber Buckets and completely changed my mind on driving..
The van is a few years old now, it’s the little 1.5 turbo engined thingummybob and carries bikes/windsurfing/kitesurfing gear very well indeed. Again speed ain’t the answer and it rarely gets used (I’ve used it 4 times since Feb) So it needs a good blast every now and again, which will be this weekend as it happens, looks windy see.. weeeeeheeeeeeeeee splosh.

You can borrow my grandad slippers for your right foot if you like.

Quich question – anyone running a lpg conversion?

What is the difference in the lpg mpg, compared to running petrol?

Thinking of buying a very cheep but clean Jeep 4.0L and converting it 😉

Ta

2005 1.2 Fiat Panda : 53mpg around town and on slightly longer runs.
2006 1.6 Astra SXI: 44 – 46mpg on a long run. I’ve managed to get the mpg as high as 51mpg but that was pretty exceptional.

Driving the Astra economically requires a gentle touch on the throttle and an even gentler one on the brakes. Oh, and sticking to the speed limit and not driving like a complete tool helps.

There’s been some movement in the US to create a new test for these kinds of cars. If you only do trips of less than 40 miles you’ll get unlimited miles per gallon of petrol…

but if you drive it further than ~ 40 miles without a recharge it is worse than a standard diesel.

Sure about that? Citation? [/quote]
This link quotes 44 mpg (I don’t know how US the test cycle compares to NEDC though) http://en.wikipedia.org/wiki/Chevrolet_Volt

I know it only wikipedia but it makes sense to me that a 1.4 petrol driving a generator driving a motor in a heavy car will be worse than a standard diesel car.

I know it only wikipedia but it makes sense to me that a 1.4 petrol driving a generator driving a motor in a heavy car will be worse than a standard diesel car.

over a traditional drivetrain, the generator system has very little mechanical drivetrain loss, and it has the ability to have a very limited engine kept in a sweet spot for long periods of time (ie the generator can be designed for peak torque and power at 1500rpm and nothing above or below that). In addition, the combustion engine can be smaller and lighter than it woudl be otherwise (its only got to produce the average power required to drive the car – say 40bhp), and there’s no need for a gearbox & clutch (which is neither small nor light). Also, the car can be engineered very specifially to remove vibrations\resenance (as the motors always sitting at xxx rpm), thus less sound deadening is required.

I’m not saying it’ll be more efficient, but i’d be surprised if it was much worse. When you add in the ability to power the car from plug-in, it could be more efficient. Trains have been using this technology for decades

How did you calculate those figures Dave? My Astra was a 2006 1.6 and I could only coax it to 34mpg at best. The Astra 1.6 has 50ltr tank so you must have been getting over 600 miles from a full tank. Is that right? My Astra gave me 381.2 miles per tank average. Like I say my current 1.3 diesel Corsa just squeezes 49mpg if I’m really careful ie. 478.6 miles per tank average.

I’ve picked the most economic, practical small car I could and I seem to be getting significantly less mpg from it then a) the manufacturers combined figures (67ish) and b) the majority of figures people are quoting on here for larger engined cars..

Is it my driving? I drive like granny. My corsa has 6 forward gears and I rarely get over 2000 rpm, even on the motorway.

depends on what you’re driving. Nearly all my journeys are long (>50 mile) slogs up big, fast roads. If I had a 5 mile commute across town I’d expect to lose 1/3 of my economy

about 30mpg

C class Kompressor

How did you calculate those figures Dave? My Astra was a 2006 1.6 and I could only coax it to 34mpg at best.

I don’t use a trip computer but do the calculations based on fuel used and distance covered. If I get less than 140 miles out of the 1st quarter of a tank I feel I haven’t been trying hard enough.

I think my style of driving has been a big factor in the MPG figures I can get. I always coast down hills in as high a gear as possible (I live in North Devon so very easy) and try not to loose too much speed through the corners (of course the cost in tyre wear may well be higher than the amount of money saved on petrol).

I’ve always been quite light on the throttle and I tend to do a lot of A road and motorway driving for work which really helps to even out the average MPG figures. I’ve also stopped hurrying to get anywhere, it makes a huge difference and most of the meetings I go to are boring so why rush?.

I’ve monitored my fuel consumption since I got the car 3 years ago and I’ve steadily been able to figure out what driving style gives the best results.

My car also has the Twin Port engine modification. Never been too sure what it means but I think it helps with economy around town.

How many people here are quoting trip computer figures, and how many are working it out properly?
Computers are generally not as accurate, and can vary either way by, to my knowledge, anywhere between 1-5mpg…..

Anyway,

1.6 petrol 05 Focus estate:

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Untitled by PeterPoddy, on Flickr[/img]

EDIT
It seems like Big Dave and I are on the same wavelength! 🙂

How did you calculate those figures Dave? My Astra was a 2006 1.6 and I could only coax it to 34mpg at best.

LEAD FOOT ALERT!!!! 😉

Fek me. We used to have a 1996 1.6 Cavalier. That used to do 36-40mpg fairly easily!

Very true, Mr Poddy. A German TV show connected up an accurate fuel flow meter/GPS and found that the instantaneous consumption figures were a country mile out, 25% at times. The overall figures weren’t as bad but also a long way out, I can’t remember the exact figures by brand but they were optimistic by of the order of 10%. Speedos and trips are often of the order of 6% fast.

Quich question – anyone running a lpg conversion?

What is the difference in the lpg mpg, compared to running petrol?

About 5-10% depending on the car and the kit. Sometimes a decent kit can actually coax more economy from your older car, but it’s always slightly down on energy content so it’ll always be a bit lower overall. A good kit will adjust your spark timing too but few do and it may not be worth the extra cash.

Oh and all those quoting high mpg figures at a constant 60mph – pah. My car would do 70-80mpg at 60mph if I could be bothered to drive it that slowly on the motorway!

Fascinatingly (to me, I’m sad) my diesel gets 50ish on a run at 70, 60ish on a run at 55-60 and about 45 at 80. My celica gets ~25 at 60, 27 at 70 and 30 at 80. Goes back down rapidly after that as it starts fueling at 12:1 then which isn’t nice on my pocket. Very curious!

So where do you drive this 400bhp Celica over 80 Coffeeking? And wherever it is I can’t help thinking you have the most pointless car on STW unless it has race/rally numbers on the doors. In which case I find your interest in consumption just one of many contradictions I’ll no doubt never be able to get my head around.

CK does race cars iirc. Although I fully understand the desire to tinker with cars and create something powerful, but not want to drive it all the time. The pleasure is in the technical challenge and engineering skill. He seems to understand the need for calmness on public roads and good fuel economy.

BoringCardiganWorld

What happened to the threads where we talked about drinking smoking and shagging 🙁

Used to have an Astra 1.6 2006 model. Shit. Burnt a massive hole in my pocket. 33mpg i was lucky.

Now on a 1.2 Fiat Grande Punto.
62mpg driving like my mum
43mpg normal driving.

still returns 40+ on the motorway, which aint bad for a 1.2 petrol

[video]http://www.youtube.com/watch?v=veU7xETANNI[/video]