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Author Topic: MPG Cruising at 80?  (Read 3697 times)

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Brick Tamland

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MPG Cruising at 80?
« on: 09 July 2010, 17:50:57 »
Did a 100 mile run to Cavan today. All motorway cruising MID showing between 25-32 MPG depending on the road.

What do v6's normaly get cruising at 80mph?
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Kevin Wood

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Re: MPG Cruising at 80?
« Reply #1 on: 09 July 2010, 17:52:00 »
About 30 MPG is probably on the money IMHO.

Kevin
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Brick Tamland

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Re: MPG Cruising at 80?
« Reply #2 on: 09 July 2010, 17:55:48 »
So, similar petrol costs for the same driving style?  :-/

Pitty the government want an extra 275 extra just going from a 2.0 to 2.5 >:( :'(
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tunnie

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Re: MPG Cruising at 80?
« Reply #3 on: 09 July 2010, 19:59:07 »
Quote
So, similar petrol costs for the same driving style?  :-/

Pitty the government want an extra 275 extra just going from a 2.0 to 2.5 >:( :'(

I had same issue for tax when i was contracting, my 2.2 was being more economical than the 1.6-2.0 band! I got about 30-34 mpg average, and they wanted 25-28 for above 2.0 petrol  :(

'creative' accounting did it for me  ::)
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Darth Loo-knee

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Re: MPG Cruising at 80?
« Reply #4 on: 09 July 2010, 20:09:57 »
30 mpg sounds about right in a 3.0 sitting at 80 mph :

Mrs' old 2.5 did 35mpg on a run at about 75-80mph ;)
« Last Edit: 09 July 2010, 20:10:42 by Loo-knee »
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tidla

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Re: MPG Cruising at 80?
« Reply #5 on: 09 July 2010, 22:56:32 »
38mpg cruise set at 65 mph brum to oxford. (should of took a photo)
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Steve 1564

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Re: MPG Cruising at 80?
« Reply #6 on: 09 July 2010, 23:40:37 »
Hi everyone...

Just done a massive set of trips - Bristol - Orkney! Then Bristol to Edinburgh (3 times) Rammed with tools & equip, cruise set at (ahem) 3500rpm with the occasional squirt & some around town driving... air con on 60% of the time

98 2.5 CDX est (129,556 and climbing)

Reset the trip before it all started 3856 miles 28.9 MPG
<1lt of oil, abs ecu started playing up on the way back (still Int)... 37 coffee nation latt'e's and about 60 Dunhill, & 6 pack of blues cds and radio 4
...And an RAC Card !
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Steve 1564

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Re: MPG Cruising at 80?
« Reply #7 on: 09 July 2010, 23:46:02 »
..... I realise this is'nt relevant but...

... I left the patio doors open and the dining room light on - I now have a reconstruction of the battle of britian going on round the light bulb !
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Lampynoiseboy

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Re: MPG Cruising at 80?
« Reply #8 on: 10 July 2010, 02:01:04 »
Quote
30 mpg sounds about right in a 3.0 sitting at 80 mph :

Mrs' old 2.5 did 35mpg on a run at about 75-80mph ;)

Agreed, my 3.0 '01 is about the same

Quote
So, similar petrol costs for the same driving style?  :-/

Pitty the government want an extra 275 extra just going from a 2.0 to 2.5 >:( :'(

That's why I bought a Jan '01 x-reg, about as late as you can get and still be exempt from the new rules  ;)

It's nice to win one for a change...
« Last Edit: 10 July 2010, 02:02:59 by Lampynoiseboy »
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El33t

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Re: MPG Cruising at 80?
« Reply #9 on: 10 July 2010, 12:26:18 »
Quote
38mpg cruise set at 65 mph brum to oxford. (should of took a photo)

Damn, that's even better than my 36.5mpg for the first gallon I used driving away from a trackday (where I got 7mpg).

The whole 140 mile trip home was 35.5 mpg, which was mostly 70mph roads, with some stop starting.

I reckon I could have had 38 if it'd been a manual and I could properly feather the go-pedal.
« Last Edit: 10 July 2010, 12:26:37 by El33t »
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OMEEEGAH

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Re: MPG Cruising at 80?
« Reply #10 on: 10 July 2010, 13:25:57 »
750 miles in the turbo'd dti omeeegah and the average is 46.
on a motorway run with the trip reset its over 50,can't see me buying a v6 when the diesels so good  :D

and tbh theres not much difference in the performance between the 2.5 2.6 v6 and the turbo dti imo  :P
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TheBoy

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Re: MPG Cruising at 80?
« Reply #11 on: 10 July 2010, 13:33:31 »
One the actual 80mph bit, mid 30s is acheivable on 3.0l auto, but any urban stuff soon eats into this.

Over a 10 day, 2000m holiday to south of France, I returned 32mpg, and did see the magical 500m from a tank on the autoroutes on the way...   ...too many 130mph stints prevented any 500m from a tank stunts on the way home....
« Last Edit: 10 July 2010, 13:34:17 by TheBoy »
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Lampynoiseboy

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Re: MPG Cruising at 80?
« Reply #12 on: 10 July 2010, 23:22:38 »
Tbf, I've not reset my trip for about 3 weeks, mix of urban & motorway, 4 days a week on the M11 between the M25 & cambridge at about 5:30am is a reasonable speed run, seems to be stuck at 27.
iirc that was about the same for my old 3.0 auto on a P plate too
« Last Edit: 10 July 2010, 23:32:06 by Lampynoiseboy »
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webby23

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Re: MPG Cruising at 80?
« Reply #13 on: 10 July 2010, 23:25:39 »
Went from M1 j25 Long Eaton down to M1 j15 Nothampton today at 55mph on cruise, as we slowed down on the slip road the display was showing 41.8mpg for that run

Averaged out at 35.6mpg over both ways though cos I had it at 75-85mph coming back......

 :y
« Last Edit: 10 July 2010, 23:26:08 by webby23 »
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TheBoy

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Re: MPG Cruising at 80?
« Reply #14 on: 11 July 2010, 12:12:37 »
I rarely reset my fuel computer (generally only when battery comes off).

Over 4000 miles, I averaged around 25mpg on petrol. On the last 2500 on gas, fuel computer reads 22mpg (though reality is around 20mpg).  Thats a day-to day use, not many long runs.  And often sparing the horses ::)
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