987 Cayman/Boxter

[vinnie07]

Evening all,

I hope this is posted in the correct section.

Strongly thinking about getting a Porsche 987 2.7L car to replace my current SLK, I was just wondering what the general mpg would be when driven sensibly?
Previously owned at GT86, Celica & vx220, I understand it will use more fuel thank these but was just concerned about purchasing it and my fuel bills doubling ha ha. If anyone could give me any idea of the mpg they get or what cars it would be similar to that would be great.

Thanks for reading

[ATM]

Good place to go for advice from owners current and previous, about running or buying one of these is here -

https://www.pistonheads.com/gassing/topic.asp?h=0&...

[phazed]

By comparison, I average about 25 mpg for mixed motoring with my 3.4, 987.1

That can be as high as 30 mpg on a run, but will fall to 9mpg on a track day.

[gsewell]

Daily driving gives 26-27mpg in my 2.9l 987.2 Cayman. Can go as high as 35mpg on a motorway cruise at legal speeds.

[DanG355]

My 2006 2.7 manual Boxster averages around 29mpg with mixed driving. Could get 34 on a steady 70mph run comfortably. Drops to 20-ish if you boot it around the lanes with full acceleration and lots of hard braking, but you can only do that for a short blast!

Budget 29mpg in mixed driving and you’ll be about right. My E90 BMW 2.5 auto averages 27mpg so the Boxster is the economical car!

[vinnie07]

Thank you every one for your informative replies.

I’m pleased to hear it’s as economical as I hoped it would be I just wanted to double check prior to taking the plunge as it will be a daily driver for me.

I will check that link out ATM. I want sure if I was in the section as I’m new to the forum

[vinnie07]

gsewell said:

Daily driving gives 26-27mpg in my 2.9l 987.2 Cayman. Can go as high as 35mpg on a motorway cruise at legal speeds.

I have seen a few of the .2 models in good condition within budget, I dont suppose you would know if they are they less economical than the .1 model with being a slightly larger engine or is the mpg return pretty much the same?
Thanks again

[Fiammetta]

My ave in a 0.2 ( the boggo 2.9 ) manual is 32 point something .
Motorway within the law it rises to 37 .

[julian987R]

have an R and that gets me 34 mpg motorway which is bigger engine, but maybe its more efficient then?

[ATM]

julian987R said:

have an R and that gets me 34 mpg motorway which is bigger engine, but maybe its more efficient then?

Translation for the newbie

He has a gen 2 special edition 987 cayman called an R. It has the gen 2 3.4 engine which is different to the gen 2 2.9 - the 3.4 has direct injection. Generally this tech is used in most modern petrol engines nowadays as it allows them to run leaner. I think the 2.9 is not direct injection.

I have the next gen 981 with a 3.4 engine and I have seen 50mpg on the motorway. But mine is PDK flappy paddle which comes with a 7 speed gearbox and this means a very long top gear so more economical. It also has alsorts of modern tech to reduce emissions further.

If you decide to go for a gen 2 2.9 then PDK becomes an option. It might help mpg if this is important to you.

[phazed]

I can’t help, but think that as the mpg for the Boxster generally is in a very doable framework, a couple of mpg either way, doesn’t make any difference if you are in the market for one of these great cars.

Up to a couple of years ago I had a 5.5 L TVR, which averaged about 12 mpg, and 4 mpg on track, (of which I did a lot of Track Days). I got through huge amounts of fuel, but the smile it put on my face was worth it. If I couldn’t afford it, I wouldn’t have it, simple as that.

Maybe I have oversimplified matters.

[vinnie07]

ATM said:

Translation for the newbie

He has a gen 2 special edition 987 cayman called an R. It has the gen 2 3.4 engine which is different to the gen 2 2.9 - the 3.4 has direct injection. Generally this tech is used in most modern petrol engines nowadays as it allows them to run leaner. I think the 2.9 is not direct injection.

I have the next gen 981 with a 3.4 engine and I have seen 50mpg on the motorway. But mine is PDK flappy paddle which comes with a 7 speed gearbox and this means a very long top gear so more economical. It also has alsorts of modern tech to reduce emissions further.

If you decide to go for a gen 2 2.9 then PDK becomes an option. It might help mpg if this is important to you.

Cheers ATM that has cleared things up for me, I did wonder if the newer larger engine was more efficient with being more modern. What a great mpg return you get out of yours, very surprised even the modern ones achieve figures like that

[vinnie07]

phazed said:

I can’t help, but think that as the mpg for the Boxster generally is in a very doable framework, a couple of mpg either way, doesn’t make any difference if you are in the market for one of these great cars.

Up to a couple of years ago I had a 5.5 L TVR, which averaged about 12 mpg, and 4 mpg on track, (of which I did a lot of Track Days). I got through huge amounts of fuel, but the smile it put on my face was worth it. If I couldn’t afford it, I wouldn’t have it, simple as that.

Maybe I have oversimplified matters.

I bet the TVR was a blast! Makes total sense, I don't have a strict budget for fuel ( I understand I may of come across this way ha ha) Just a minor considering being a daily driven car I wanted a rough idea of real world returns

[ATM]

vinnie07 said:

Cheers ATM that has cleared things up for me, I did wonder if the newer larger engine was more efficient with being more modern. What a great mpg return you get out of yours, very surprised even the modern ones achieve figures like that

Seriously nursing it

[phazed]

vinnie07 said:

I bet the TVR was a blast! Makes total sense, I don't have a strict budget for fuel ( I understand I may of come across this way ha ha) Just a minor considering being a daily driven car I wanted a rough idea of real world returns

[LunarOne]

ATM said:

vinnie07 said:

Cheers ATM that has cleared things up for me, I did wonder if the newer larger engine was more efficient with being more modern. What a great mpg return you get out of yours, very surprised even the modern ones achieve figures like that

Seriously nursing it

Wow! I have a 3.4 981 Boxster and never get close to that. But then I have a manual which is too long in all the gears except 6th which is too short.

[SV_WDC]

vinnie07 said:

I have seen a few of the .2 models in good condition within budget, I dont suppose you would know if they are they less economical than the .1 model with being a slightly larger engine or is the mpg return pretty much the same?
Thanks again

As mentioned by ATM, the 987.2 PDK which has a 7th gear generally designed for wafting, it's an economical gear and keeps the revs down.

I manage around 29mpg base 987.2 (2.9 litre engine) driving sensibly, but don't know how much to trust the mpg really as it does seem to fluctuate, depends on the journeys you're making etc. I get around 250-300 miles on a tank of V Power, with the 64 litre tank you're looking at about £115 to fill up on current prices.

Edited by SV_WDC on Monday 2nd January 20:09

[K1909]

I used to have a 987 2.7 as my daily doing about 10-15 miles a Day around town, and I still found it reasonably economical. I logged the mileage with an app, hope this helps great little car

[944 Man]

Ive recently seen someone with an almost 300,000 mile 987.1 2.7 return 32mpg...

[SV_WDC]

K1909 said:

I used to have a 987 2.7 as my daily doing about 10-15 miles a Day around town, and I still found it reasonably economical. I logged the mileage with an app, hope this helps great little car

Interesting, what app is that?