petemac

1 hour ago, boer13 said:

Surely didnt buy a 3.4L Porsche to try beat the neighbour's fuel consumption. I pay for fuel, he pays a car loan and suffers depreciation. Guess who's having more fun  

I do have records of all the 30 odd cars I've owned to date, worst had been a Nissan Patrol 4.8L followed by some V8 Disco's. So 22.5 is a relative number!   

What I did was purely a test for my own curiosity nothing more this is my first 987 and Porsche states they are good for 36 MPG so I thought I would put mine to the test that is all pure and simple if I have rocked the boat a little it was not my intention.

Regards

Pete

1 hour ago, bally4563 said:

Most of us drive these motors for a reason and consumption is not worth considering? If I was that concerned I would replace the engine with a lawn mower motor!!

very good point it was not a dig just an observation, having read what the Porsche 987 "should do" I was a little surprised, I have also had cars that would do less than 18 MPG in fact one of my cars was shown on Top Gear many years ago so please don't take it heart this is my first 987 and I was hoping for better results.

Regards

Pete

2 hours ago, boer13 said:

Depends your definition of 'so called true MPG' and how pedantic you want to be about measuring it 

Your trial covers a specific, narrow use range, and achieves a good indication of MPG under the stated circumstances. Good if this is what you wanted to measure! But then this may not represent all your driving and.

For my own interest, I want to know consumption across all actual use. Always fill up completely, always write down the odo reading.. that type of bore! Because to meet my definition I need to look at long term total fuel / mileage. But as they say, YMMV!

Here's a snap from my Excel file. Tank to tank varies, but the long term cumulative number suggests 'my consumption' is 22.5MPG.

 

 

 

 

 

22.5 MPG really that bad ? I would not be happy with this one little bit and would start to wonder why it's so poor or change my driving style you don't say how you normally drive are you one for spirited driving often ? I thought mine was bad at 32 MPG I have now done 2 runs with very similar results I think there may be very different styles of driving between us but very interesting all the same thank you for sending it, I will do one more run see how that compares I'm up north tomorrow so that will be another good run for me. I do not like the OBC one little bit it lies alot!!

Regards

Pete

3 minutes ago, ½cwt said:

Rears are correct, so just go to 235/40 on the front next time you change.

Thanks again Chris. I have some miles to go yet but will do as you suggested and change when due, the car seems to handle ok but I have to reach the limit on these, I think I need the Nurburgring for a few laps. Did it in my former Westfield and loved it. Then again it would cost a few bob!! catch up again later I'll let you know how the new pressures fair.

Pete

1 minute ago, ½cwt said:

This all of course depends how accurate the gauge you are using is.

True! I do have a decent gauge and will try 32 front 37 back and keep an eye on tyre wear, also what are your thoughts on the configuration I mentioned that is on the car at the moment? Cheers Chris.

1 minute ago, ½cwt said:

For the driving you have described they are 10mm narrower.  I wouldn't necessarily rush to spend £300.

My thoughts also! the ones on are new tyres with very little wear.

3 minutes ago, ½cwt said:

From Revolution Porsche:

What should the tyre pressures be on my 986/987/987C? (revolution-porsche.co.uk)

29/36 F/R  all sizes on 17 & 18

32/36 in 19"

Hi Chris, I have seen some quoted as 32psi on the front and 37 psi on the backs I think I may try these surely it can't harm them.

2 minutes ago, edc said:

Also aren't these 986 rather than 987 tyre size for 18"?

You have got me there my friend, is this an error by the previous owner? should I change them?

22 minutes ago, Gutley said:

Aren’t the recommended pressures on the info card in the door jam?

Yes Gutley they are, but not for this tyre  the but thank you anyway.

Pete

When I bought my car the tyres were new however I am not certain about the tyre pressures for the following tyres which are on the front! 

the tyre make is Michelin Pilot Sport 3  225/40 ZR 18.   I have searched their site but cant find what pressure this tyre should be at. I have been inflating to 29 psi when doing my monthly tyre checks is this too low for this tyre? and if so what do you guys suggest ? Also while I am on this subject of tyres, on the back are 265/35ZR 18 is  this set up ok I am still getting to know this car driving wise. I am putting 36 psi in the backs is this ok? I do the odd spirited drive when the roads allow but not much.

as always hoping someone can guide me.

Regards

Pete

I forgot to mention  is a 3.4 I suppose I should be fairly happy with nearly 32 mpg and it was heavy with a full tank so I assume that would have some affect with weight being a real killer when it comes to fuel consumption. I was just curious to see how it was in real time so to speak and it will help with my planned trip to sunny France (I hope its sunny I'm off camping for a week) thanks for your feed back guys.

Pete

I wanted to know what my cars MPG is so filled it to the brim did 270 miles at different speeds 50. 60.70. mph. topped it up and its average I worked out was 31.9 MPG my car is 57 reg.

so 14 years old now with nearly 60000 miles is this good or bad? I have owned the car for 6months so I was curious to know its so called true MPG. Has anyone done a similar test and if so how how well or poor did your car do? and is this a fair way to test your car? ie different speeds as you would probably drive it. Some stats state the 987 should achieve 36 mpg. I did notice how heavy the car was with a tank filled to the brim something I never normally do, so surely this must have some affect on my results. I may do another to compare. 

Thanks guys some great advice as always.

Pete

Bought a lovely Guards Red 987 and absolutely love it however there is no spare wheel which I had in my old 986, what do you guys carry in the event of a flat tyre.

As always your advice would be greatly appreciated, the kit that comes with the 987 is now 10 years old so I'm assuming it's past it's sell by date.

Thanks folks.

Any good garage should be able to do this it's not that difficult for them to do as long as they have the kit to press the old one out ask them first when you get in touch with one.

2 hours ago, rhys57 said:

What have you had done mate is it a 986 

Yes mate it is a 986 I have done the following: All new suspension. new coils, plugs. MAF meter, water pump, IMS bearing, new clutch, all the brakes done discs pads. wheels refurbed, serpentine belt,  new thermostat, new lambda sensors  X2.  2 new drive shafts genuine Porsche parts very expensive. rear wheel bearings. Exhaust work just the bolts all corroded. coffin arms, drop links, oil changes, filter changes, new tyres,  Most of these parts were going to fail sooner or later hence the planned maintenance.  new coolant,  all the above done over a period of 4 years.

Regards   Pete

I've spent just over £10 Grand in 4 years not because things failed I just wanted to keep it in good nick, it's 20 years old in May with 58000 miles on the clock, no they are not cheap to keep in good condition and hopefully I will now just spending on oil changes etc . I paid just over £6 grand for the car and I knew I would be spending money on it. I also think that if your intention is to keep the car long term and you have spare cash why not spend it on your pride and joy. I always keep a small kitty set aside just in case it's needed I hope it's not.