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Chat Area => General Car Chat => Topic started by: Brick Tamland on 09 July 2010, 17:50:57

Title: MPG Cruising at 80?
Post by: Brick Tamland 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?
Title: Re: MPG Cruising at 80?
Post by: Kevin Wood on 09 July 2010, 17:52:00
About 30 MPG is probably on the money IMHO.

Kevin
Title: Re: MPG Cruising at 80?
Post by: Brick Tamland 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 >:( :'(
Title: Re: MPG Cruising at 80?
Post by: tunnie 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  ::)
Title: Re: MPG Cruising at 80?
Post by: Darth Loo-knee 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 ;)
Title: Re: MPG Cruising at 80?
Post by: tidla on 09 July 2010, 22:56:32
38mpg cruise set at 65 mph brum to oxford. (should of took a photo)
Title: Re: MPG Cruising at 80?
Post by: Steve 1564 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 !
Title: Re: MPG Cruising at 80?
Post by: Steve 1564 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 !
Title: Re: MPG Cruising at 80?
Post by: Lampynoiseboy 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...
Title: Re: MPG Cruising at 80?
Post by: El33t 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.
Title: Re: MPG Cruising at 80?
Post by: OMEEEGAH 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
Title: Re: MPG Cruising at 80?
Post by: TheBoy 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....
Title: Re: MPG Cruising at 80?
Post by: Lampynoiseboy 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
Title: Re: MPG Cruising at 80?
Post by: webby23 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
Title: Re: MPG Cruising at 80?
Post by: TheBoy 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 ::)
Title: Re: MPG Cruising at 80?
Post by: Lazydocker on 11 July 2010, 18:29:27
After a complete nightmare getting down to Dorset no Friday evening, including getting the EML on for a while (see other section), I filled up Yesterday morning at Honnington and after 430 miles of mostly 80 (ish ::)) mph cruising down to Plymouth and home again I've averaged 30.7mpg and 64 mph according to the confuser :y :y

It has made me realise that I've still got my Italy costings too high for driving ;)
Title: Re: MPG Cruising at 80?
Post by: Broomies Mate on 11 July 2010, 21:57:04
Bought the car yesterday, drove from Swansea to home (Bristol).

1999 3.0, 130,000miles. Cruise set to 3,000RPM (84MPH indicated).  One heavy stamp on the loud pedal........ 31.9 MPG  :)



My other 3.0 (1998)

Gatwick Airport and back to Bristol via W-S-M, Cruise set to 75MPH, no stamps on the loud pedal........ 24.1 MPG   >:(
Title: Re: MPG Cruising at 80?
Post by: david036 on 13 July 2010, 15:40:25
My 3.0 v6 gets about 30ish, on motorway, drops to 24 when towing the trailer!!!