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Diesel fuel consumption?

Posted: 08 Aug 2009, 10:12
by Chrissyt
What fuel consumption is likely with a diesel t25? I'm pretty bored of my DG's fuel consumption and may think about making the swap in the near future?

Also I have a small boat I tow my DG copes ok, but is the diesel up to it?

Regards

Chris

Re: Diesel fuel consumption?

Posted: 08 Aug 2009, 11:15
by HarryMann
A good 1.6 TD in a 2WD can get maybe 35 mpg on some runs, realistically 30 mpg over a year's normal driving.

Then... my Syncro Doka 1.9TD is doing about 24 mpg, but a petrol 2.1 in that doing what it does would be below 20 I reckon (and diesel is not fully sorted yet, getting there though)

This will be your very worse case :)

Image

From Wiki on diesel comsumption

Re: Diesel fuel consumption?

Posted: 09 Aug 2009, 22:22
by andysimpson
TDI is the way to go for economy, makes the 1.6td and 1.9td look really bad for economy.

Re: Diesel fuel consumption?

Posted: 10 Aug 2009, 06:44
by eatcustard
Would it not be better to go LPG?
As Diesel and petrol will keep going up in price and LPG is relatively stable?

My 2.1i get around 15-20 to the gallon at 50ppl (LPG) so thats anything from 30-40MPG in comparison.

Re: Diesel fuel consumption?

Posted: 10 Aug 2009, 12:02
by richieadkins
I have a 1.9 N/A diesel and I get 35-40 mpg.

Re: Diesel fuel consumption?

Posted: 10 Aug 2009, 12:41
by HarryMann
Good mpg that. PM us with the figurework over the last thousand miles or so and we'll put them in the Wiki nothing in there yet on a 1.9 NA

Re: Diesel fuel consumption?

Posted: 10 Aug 2009, 16:29
by ..lee..
getting about 500 ish miles on 60 litres of waste diesel and petrol mix in the t4 1.9 na atm. only ever pay for 30 litres so works out about 80 mpg in money terms. :ok

Re: Diesel fuel consumption?

Posted: 10 Aug 2009, 20:08
by HarryMann
Is it possible that some of you reporting could run a proper fuel inventory. Actual fuel into vehicle and mileage when it went in over a significant distance e.g. 1,000 + miles

then we can plot conusmptions a bit more reliably. thanks

Re: Diesel fuel consumption?

Posted: 10 Aug 2009, 20:34
by SplendiferousII
1.9 na with high top, I'm getting 35 to 40. when it was a 1.6na I was getting at least 45mpg but it was unbearably slow.

Re: Diesel fuel consumption?

Posted: 10 Aug 2009, 20:42
by weldore
hmmm...i think im getting around 30-35 with mine if im lucky...going to the coast tomoz so ill fill it to the brim :shock: then clock it and when i get back ,fill up again to see how much its drank..if i remember :oops:

Re: Diesel fuel consumption?

Posted: 10 Aug 2009, 20:53
by psychonaut
100 miles of mixed motorway and A-road driving over the weekend, between Cardiff and the Forest of Dean via the M4 and A48, and my 1.9 N/A diesel (ex-Seat Ibiza motor with 60k on it) turned in 31mpg. I'll post more figures by way of an inventory as and when i remember to do them :)

Re: Diesel fuel consumption?

Posted: 10 Aug 2009, 21:25
by HarryMann
Inventory can't have any gaps in it, pretty well makes everything before meaningless..

Best method is just ask for a VAT receipt with litres and keep every one. If it was a brim write the mileage reading on it, else not, keep them in date order, job. Oh start with a brim and mileage of course, else that'd be a false start with inderterminate fill-state.
Even if you go several fills without a brim, no matter, but eventually need a final brim and mileage to do it accurately..

If tank leaks when brimmed, use a known gauge reading as accurate as possible for the start and end states e.g. 3/4 mark. Using empty state fraught with problems of course and not recommended

Any single fill-to-fill figure can be +/- 20% as you can see between blue and yellow curves on chart above... so a 40 could be 48 or 32 !! At best 10%, 44 or 36 (still a big difference :shock: )

If you can get to 1,000 miles or more like that, then figures will be well worth plotting out...

Re: Diesel fuel consumption?

Posted: 11 Aug 2009, 16:42
by oldiguana
mrs iguana with the 1.9n/a is also gettin 35 round town....40+ on a steady run

Re: Diesel fuel consumption?

Posted: 11 Aug 2009, 18:27
by weldore
mmmm a dash of 2 stroke in there too :wink:

sorry i didnt fill up today..gail said no!! :roll: ..ill try again when she aint with me :lol: