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Author Actual MPG compared to book figures
antnee
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Registered: 30th Dec 07
Location: Cov Drives: Clio 197
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20th Jan 12 at 12:14   View User's Profile U2U Member Reply With Quote

From experience how good/close are book figures to what you actually get MPG wise?

Looking for a daily, and now considering petrols, a lot say around 45-50mpg extra urban, but can these figures actually be done in the real world not sat at 50mph
richc
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Registered: 24th Mar 07
Location: Ilkeston
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20th Jan 12 at 12:21   View User's Profile U2U Member Reply With Quote

I have always got within 2-3 mpg (when driving steady and obeying the speed limit) of the average consumption of any car ive owned. Thats with my usuall quick blat, and alot fo steady town/30/40 limit roads on the 20 miles to work and back.
Ben G
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Registered: 12th Jan 07
Location: Essex
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20th Jan 12 at 12:22   View User's Profile U2U Member Reply With Quote

i'd say around 5-10 mpg less for real world driving compared to book figures.
pow
Premium Member

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Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
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20th Jan 12 at 12:22   View Garage View User's Profile U2U Member Reply With Quote

Never got anywhere near the late 50's promised in the last 4 of my diesels.
richc
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Registered: 24th Mar 07
Location: Ilkeston
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20th Jan 12 at 12:24   View User's Profile U2U Member Reply With Quote

All my cars were petrol engined (turbo and N/A) btw.

I think diesels are worse for quoted mpg than petrol.
richc
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Registered: 24th Mar 07
Location: Ilkeston
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20th Jan 12 at 12:25   View User's Profile U2U Member Reply With Quote

Actually i lied. My old 318 is coupe would do about 27 - when it was quoted an average of 35
daymoon
Premium Member

Registered: 1st Aug 08
Location: Selby, North Yorkshire
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20th Jan 12 at 12:29   View Garage View User's Profile U2U Member Reply With Quote

quote:
Originally posted by richc
Actually i lied. My old 318 is coupe would do about 27 - when it was quoted an average of 35


That's poor! With faulty lambda and suspected duff thermostat I was getting close to 30mpg in a 323I that I used to push a lot due to the 328 exhaust it had!

With current BMW I have it's bang on to be honest. Of course depends on weather as well as it takes longer to get up to temp.

For 530D figures are:

Fuel consumption (urban) 23.9 mpg
Fuel consumption (extra urban) 44.8 mpg
Fuel consumption (combined) 34 mpg

Urban I get about 30-33
Extra urban most I had was 48mpg, but was sat at 60mph most of way, 44.8 is sat at 70-80 all the time!

[Edited on 20-01-2012 by daymoon]
antnee
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Registered: 30th Dec 07
Location: Cov Drives: Clio 197
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20th Jan 12 at 12:30   View User's Profile U2U Member Reply With Quote

Sort of cars Im looking at

Volvo S40 1.8 44mpg
Focus 1.8 47mpg
Mk3 Golf 1.6 55mpg
Jambo
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Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
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20th Jan 12 at 12:31   View User's Profile U2U Member Reply With Quote

M3 has some sort of issue at the moment, 13mpg currently
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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20th Jan 12 at 12:32   View User's Profile U2U Member Reply With Quote

I very much doubt you will get those figures from those cars, unless you will be driving along a motorway all day.
antnee
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Registered: 30th Dec 07
Location: Cov Drives: Clio 197
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20th Jan 12 at 12:39   View User's Profile U2U Member Reply With Quote

Its motorway mpg Im talking about, not too fussed around town
Ben G
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Registered: 12th Jan 07
Location: Essex
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20th Jan 12 at 12:43   View User's Profile U2U Member Reply With Quote

focus will get that kind of mpg if sitting at a steady 55mph on a motorway.
whitter45
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Registered: 15th Nov 02
Location: Norton
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20th Jan 12 at 12:51   View User's Profile U2U Member Reply With Quote

struggle to be honest

Book says combined cycle of 63mpg

Best I have had is around 57mpg for a tank but that was mostly motorways

I average 55mpg

Did achieve this once over a 400 mile round trip



Matt L
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Registered: 17th Apr 06
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20th Jan 12 at 13:00   View User's Profile U2U Member Reply With Quote

parkers reckons mine can manage 50mpg i have seen that once when following people who refuse to go above 40 on my journey to work, most of the time the tank will average 42.
Dan295
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Registered: 9th Oct 06
Location: London
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20th Jan 12 at 13:02   View User's Profile U2U Member Reply With Quote

book says 88.3mpg, realistically the highest was 81mpg
3CorsaMeal
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Registered: 11th Apr 02
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20th Jan 12 at 13:14   View User's Profile U2U Member Reply With Quote

i'd ignore computers on cars and work out your real fuel consumption yourself

its like downloading something and its says 9mins to go, then 3mins later it will say 10mins to go
FAZ
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Registered: 24th Nov 07
Location: Coventry
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20th Jan 12 at 13:22   View Garage View User's Profile U2U Member Reply With Quote

this is all very deano
whitter45
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Registered: 15th Nov 02
Location: Norton
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20th Jan 12 at 13:24   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by 3CorsaMeal
i'd ignore computers on cars and work out your real fuel consumption yourself

its like downloading something and its says 9mins to go, then 3mins later it will say 10mins to go


I would agree with that - some cars however are more accurate than others
richc
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Registered: 24th Mar 07
Location: Ilkeston
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20th Jan 12 at 13:56   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by 3CorsaMeal
i'd ignore computers on cars and work out your real fuel consumption yourself

its like downloading something and its says 9mins to go, then 3mins later it will say 10mins to go


Is that because you havent got one?
mattant
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Registered: 19th Jun 10
Location: South Yorkshire
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20th Jan 12 at 14:52   View User's Profile U2U Member Reply With Quote

I normally take 5mpg off what the book says the combined figure is
Rob H
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Registered: 28th Oct 00
Location: Staffordshire Drives: Astra SRi
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20th Jan 12 at 14:58   View User's Profile U2U Member Reply With Quote

http://www.honestjohn.co.uk/realmpg

Some interesting results. It seems the figures of anything made in the last 2/3 years can be ignored and taken as impossible to acheive.

Also if you look at some of the figures with/without stop start, they're a joke - eg
Astra J hatchback;
1.7 CDTi 110ps ecoFLEX 62.8 mpg
1.7 CDTi ecoFLEX 110ps (start/stop) 76.3 mpg

You what?!?
AlexW
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Registered: 25th Oct 08
Location: Essex
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20th Jan 12 at 15:10   View User's Profile U2U Member Reply With Quote

Clio got a max of 55 with a quoted 65mpg. Might do more now the injectors are new clean jobbies.

Dunno about corsa's, I know the 1.6 gets about 25mpg with nothing but hard driving. I think its Supposed to do more than that.
3CorsaMeal
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Registered: 11th Apr 02
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20th Jan 12 at 15:17   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by richc
quote:
Originally posted by 3CorsaMeal
i'd ignore computers on cars and work out your real fuel consumption yourself

its like downloading something and its says 9mins to go, then 3mins later it will say 10mins to go


Is that because you havent got one?


no, not at all, corrado has two actually, so you can swap between the journey your on, or the grand scheme of things

future car basically
Tiger
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Registered: 12th Jun 01
Location: Leicestershire Drives:Astra VXR
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20th Jan 12 at 19:28   View User's Profile U2U Member Reply With Quote

My 330Ci is averaging about 22mpg at the minute in the cold. Same stretch in the warm summer is about 27mpg.
MarkM
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Registered: 11th Apr 01
Location: Liverpool
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21st Jan 12 at 08:14   View User's Profile U2U Member Reply With Quote

My 1.9 150 CDTI is averaging 36 mpg at the moment. That's a 4 mile journey to/from work in stop start heavy traffic.

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