least fuel efficient car? nothing 'obscure'

least fuel efficient car? nothing 'obscure'

Author
Discussion

rswift

1,179 posts

175 months

Sunday 2nd January 2011
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Jaguar X350 4.2 V8...on LPG, equivalent of 42 (380 miles for 80 litres of gas. Seen 35MPG on petrol out of this car ! .. albeit slowly on a motorway.

Mtsubishi Pajero 2.5 Diesel (known as the W**KER) as its' Spanish translation 22MPG no matter what, and it is really slow !..but great in Snow !

Citroen 2CV ...I have a 1960 version. Local garage does proper old school 4 star .. million quid a litre, on full thrash (425cc) I can get this at 25mpg !

anonymous-user

54 months

Sunday 2nd January 2011
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97 A8 4.2 - 20 mpg average. 80% of the miles are A3 then M25. Quite easy to get into single digits if messing around
98 S8 - 17 mpg average. Miles about 60% motorway/40% urban, plus I drove it harder IIRC
96 A4 2.8 - mid 20s
97 R33 GTR - low 20s (22/23 I think)
90 Celica GT4 - mid 20s

So the GTR was the most fuel/fun efficient by a long way

The_Burg

4,846 posts

214 months

Sunday 2nd January 2011
quotequote all
acricha3 said:
Nope 231! Took me a long time to work out how to get even close to the manufacturer figures, trick is gentle throttle inputs within the 2k to 4k RPM band. The standard ECU overfuels hugely if it thinks you want to accelerate in a decent fashion (especially from a low RPM) as it helps supress detonation that knocks the tips out, a case of Mazda being too cautious for their own good!
Does anyone do a switchable map for these? Potential for an economy map for normal and switch to power map for fun.
If not there would be a good market if you could get reasonable economy for commute mode.

Bonefish Blues

26,648 posts

223 months

Sunday 2nd January 2011
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Mx-5 Mks 1 & 2 are notably inefficient when you consider their modest outputs and light weight - sub 30 is the norm, with sub 25 reported by many owners.

Dave J

884 posts

266 months

Sunday 2nd January 2011
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CLS 55 = 11mpg general use

up to 23mpg on a steady motorway run

sawman

4,917 posts

230 months

Sunday 2nd January 2011
quotequote all
I saw 5mpg (averaged over a couple of tankfuls) out of my xj cherokee during a canadian winter

Edited by sawman on Sunday 2nd January 10:21

uk_vette

3,336 posts

204 months

Sunday 2nd January 2011
quotequote all
dave9 said:
some good examples there guys - took some doing i bet to get 8mpg in the scoob. however that's a one off!

shall we allow the dodge srt ram as not 'obscure'?

if so that's winning so far with 13mpg if not the range rover is winning at 17mpg.

the veyron i think we'd have to class as obscure in that it's just too rare.

cayenne turbo's can now be had for £16k - do you think they will get to £12-£13k by April? I think so!
/
The OP asked for 'non obscure cars.
So the secong poster puts up some obscure American truck.
I like the American trucks, but this thread is not for them just now.

Same for the RAM.

I would say, obscure means, only seeing one a week or some thing like that.

'vette