True MPG Boxster 2.7

True MPG Boxster 2.7

Author
Discussion

madasafrog666

Original Poster:

210 posts

169 months

Saturday 10th September 2016
quotequote all
Hi, what mpg do you guys get from your Boxster. I have a 2006 2.7 and it does seem to be running at around 22mpg. This is mainly town driving with some country blasts at the weekends and evenings. I have read the official figures and to me they seem rather high.
The car has been fully main dealer serviced and has just done 49k.


mollytherocker

14,366 posts

210 months

Saturday 10th September 2016
quotequote all
This is an impossble question.

Depends on you driving style!

Anything between 5 and 35mpg is possible.

NNH

1,520 posts

133 months

Saturday 10th September 2016
quotequote all
My 2008 Cayman 2.7 averages low 20s in mixed town driving, 26-28mpg in general touring, and just under 30mpg on slowish run from Falkirk to south London yesterday.

madasafrog666

Original Poster:

210 posts

169 months

Saturday 10th September 2016
quotequote all
ok I might be a bit heavy footed at the weekends but is 22 about right?

mollytherocker

14,366 posts

210 months

Saturday 10th September 2016
quotequote all
madasafrog666 said:
ok I might be a bit heavy footed at the weekends but is 22 about right?
Yeh sounds perfect.

Have you any idea how complex this subject is? Do you think that a few fools on the tinternet ( of which I am one) can give you an accurate appraisal with the limited info you have supplied?

What type of roads?
What was the weather?
Can you drive? (This is the biggy)
How fast do you drive?
How much throttle do you waste?
Do you brake when you dont need to?
Do you carry speed?
Do you look ahead and plan accordingly?

Etc etc etc....

These things make huge differences.




gsewell

694 posts

284 months

Sunday 11th September 2016
quotequote all
The perpetuated myth of official mpg figures was blown apart in this article...
http://www.thisismoney.co.uk/money/cars/article-37...
Basically, they are all at it!

jakesmith

9,461 posts

172 months

Sunday 11th September 2016
quotequote all
I achieved 26MPG over 4 years in a 987 2.7 manual. Daily commute from Richmond to Guidford in pretty terrible traffic. Long trips every 3-4 months across the country, supermarket, everything. Best I ever saw was 32 on a long slow run, and worst was 10 on track for half a day.
22 sounds low.
I have a 997 C4S now with 3.8 355BHP and average 20.5 and drive it in heavy traffic & hard when the oportunity presents

DJMC

3,438 posts

104 months

Monday 12th September 2016
quotequote all
Over 9,999 miles my average has been 36.5mpg.

But... that's a 2014 2.7 and a Cayman where no doubt the slipperiness of the metal roof improves mpg compares to the irregular surface afforded by the fabric of the Boxster's roof?

ORD

18,120 posts

128 months

Monday 12th September 2016
quotequote all
37 mpg? Bloody hell. You must be the guy that gets 80mpg in a diesel.

I would have thought high 20s to maybe v low 30s in a 2.7 if you use it on long, boring journeys a lot; low 20s if you use it in town and on fun roads (i.e. braking and accelerating a lot). 22 doesnt surprise me at all.

I find the 2.7 to be no less thirsty than the other F6s when driven hard, as you get stuck in 2nd gear the whole time! A different story on the motorway or sweeping A roads: the smaller 6s are more economical at a cruise (especially with PDK).

I find mpg interesting from a nerdy perspective - some cars do seem to get a surprisingly number of miles. (Couldnt care less as regards costs of motoring - it's a very small proportion of the cost of running a Porsche).

gadgit

971 posts

268 months

Monday 12th September 2016
quotequote all
Having just bought my 2014 cayman 981 2.7 .....when I drove home which was about 30 miles, with the wife on board I'd already decided not to hammer the thing and treat both the wife and the car on this trip with extreme care.
Knowing of course that thigs will change.
I just drifted along following other cars around 50-60 mph on the A roads.
Could not get passed much in the traffic anyway at the time of day.
Mine is the wonderful 6 speed manual.
Averaged 37mpg..... But it won't last of course ?????
However, travelling on most of the smaller roads from cambridge to Sheringham would probably be doing 50-60 mph on traffic you just cant be bothered to overtake to gain 20ft......
Just normal modern driving sometimes.
But just shows what you could do very good figures if you wanted????
Gadgit

DJMC

3,438 posts

104 months

Monday 12th September 2016
quotequote all
Often get an indicated 42-43mpg for a similar journey. Mine's PDK.
Similar when I often travel to Birmingham. 3 miles A road to M6, then 30 miles motorway, then 5-6 miles urban stop/start the other end.
The lowest I've noticed when having a blast just for fun has been around 27mpg for a run.

chriscoates81

482 posts

133 months

Monday 12th September 2016
quotequote all
I had a brand new 981 boxster as a courtesy car and managed high 30's on the motorway, however with the roof down it's was low 20s which is the same as o get in my 996 turbo, there must be Alot of drop from the open roof and the amount of wind blowing in my face seemed to support this.

ORD

18,120 posts

128 months

Monday 12th September 2016
quotequote all
anonymous said:
[redacted]
Quite. Some people must go for a "blast" at 2,000 rpm in 5th gear.

DJMC

3,438 posts

104 months

Monday 12th September 2016
quotequote all
ORD said:
Quite. Some people must go for a "blast" at 2,000 rpm in 5th gear.
Unfortunately a constant 7,000 rpm isn't advisable in my neck of the woods, due to colliding with other traffic.
No doubt some people are fast enough to get their mpg down to single figures. Well done!

Hard-Drive

4,090 posts

230 months

Monday 12th September 2016
quotequote all
Motorway cruise to get somewhere at sane speeds? 33-35mpg
General blasting about with "oh look a clear road hello redline" 22-25mpg
Track-don't ask mpg.

chriscoates81

482 posts

133 months

Monday 12th September 2016
quotequote all
I think it's also worse if you have pse as wellbiggrin

ORD

18,120 posts

128 months

Monday 12th September 2016
quotequote all
DJMC said:
Unfortunately a constant 7,000 rpm isn't advisable in my neck of the woods, due to colliding with other traffic.
No doubt some people are fast enough to get their mpg down to single figures. Well done!
smile

Everyone drives different roads and has a different style. On country roads, I brake a lot and use low gears but still get high teens low 20s most of the time (because I use cruising gears when between corners unless they are close together).

Anyway, a constant 7,000 rpm would result in a steady speed. No more risk of collision that a steady 2,000 rpm in a higher gear. biglaugh


DJMC

3,438 posts

104 months

Monday 12th September 2016
quotequote all
ORD said:
smile

Everyone drives different roads and has a different style. On country roads, I brake a lot and use low gears but still get high teens low 20s most of the time (because I use cruising gears when between corners unless they are close together).

Anyway, a constant 7,000 rpm would result in a steady speed. No more risk of collision that a steady 2,000 rpm in a higher gear. biglaugh
...a steady speed? What if I dared change out of first gear?

ORD

18,120 posts

128 months

Tuesday 13th September 2016
quotequote all
You wouldn't be at 7,000 revs any more.

NNH

1,520 posts

133 months

Tuesday 13th September 2016
quotequote all
ORD said:
You wouldn't be at 7,000 revs any more.
Or you'd have a knackered clutch...