Fuel Consumption...

[upstream]

Hi all,

I've been thoroughly enjoying driving my Z over the past few weeks and at last fill up I thought I'd check to see what sort of fuel consumption figure I was achieving. As it doesn't have an onboard computer I thought I'd do a empty / fill / empty type test.

Anyway - the result of driving primarily around town during rush hour traffic (morning and evening) with a few short motorway stints thrown in was 44 litres to 250 miles which according to an online MPG calculator comes out at a shade over 25mpg. My driving style tends to be more that of a sedentary type, rather than with my foot firmly planted either on the accelerator or brake pedal.

How does this compare? Is it about right, a bit off or better than would be expected..?

I'd welcome your thoughts.

Thanks.

 

[t-tony]

That's what I get from my 2.0 Auto on mixed mileage, much the same as my VW Touareg 2.5D.

 

[jonco]

Town rush hour driving is always going to eat into your average. You really need to check it on a long varied run for a more accurate performance indication.
On this year's road trip to South of France of ~2500 miles I averaged 33mpg in my 1.9 auto. The range however was from 38mpg on A road gentle driving down to 24mpg when tootling around down there and sitting in numerous traffic jams.
There is also a case for using 98 octane as the extra cost is paid back with increased mpg. There will be a lot of different opinions - watch this space

 

[upstream]

Town rush hour driving is always going to eat into your average. You really need to check it on a long varied run for a more accurate performance indication.
On this year's road trip to South of France of ~2500 miles I averaged 33mpg in my 1.9 auto. The range however was from 38mpg on A road gentle driving down to 24mpg when tootling around down there and sitting in numerous traffic jams.
There is also a case for using 98 octane as the extra cost is paid back with increased mpg. There will be a lot of different opinions - watch this space

Mine is the 1.9 auto too. i'm really keen to hear from people eho have been using premium fuels.

 

[zedonist]

Mine is roughly that or worse , you should really only use high octane with the M44, other wise you will get pinking, which can lead to overheating of the valves and head.

 

[jonco]

Mine is the 1.9 auto too. i'm really keen to hear from people eho have been using premium fuels.

I use 98 now I think @zedonist converted me in a previous thread. Shell V power has given me the best returns - the 38mpg I quoted previously was on that.

 

[zedonist]

+1 for Shell Vpower

 

[David Cullen]

im at average 32 and that's with some spirited driving thrown in + motorway + city
I fill put in 50 euro of fuel at 1.50 and get about 275 miles for that, my maths aint good so that's what a friend told me I was getting

 

[jonco]

im at average 32 and that's with some spirited driving thrown in + motorway + city
I fill put in 50 euro of fuel at 1.50 and get about 275 miles for that, my maths aint good so that's what a friend told me I was getting

Brilliant - not sure about the maths though you are doing almost 38mpg on those figures (unless mine are suffering from red wine overload)

 

[David Cullen]

wow that's very good haha thanks Jonco, enjoy the wine ;-)

 

[DavidM]

My 2.8 was averaging 35mpg when I first bought it. I have managed to get the mpg up to 39.9 through careful, smooth driving (between 50 and 60 mph driving on A roads, but no further! Currently averaging 38.7 mpg. All stats quoted are the readings on the on-board computer with tyre air pressures reading 36 psi.

David.

 

[EnthuZiaZT]

On our recent trip to France, we covered just over 1900 miles and averaged 39.8 miles to the gallon in a 2 litre Z4. Most of that was motorway driving down country at 80 mph plus. Filled up with Shell V Power with 98 Ron on one occasion.
M & S

 

[oldcarman]

If I send Jonco a case of wine I can gain that kind of milage?? Please send delivery address!! Anyone know what the increase is with beer or whiskey?? JIM

 

[jonco]

If I send Jonco a case of wine I can gain that kind of milage?? Please send delivery address!! Anyone know what the increase is with beer or whiskey?? JIM

As we know Jim, alcohol has a great effect on our perception of performance

 

[upstream]

Mine is roughly that or worse , you should really only use high octane with the M44, other wise you will get pinking, which can lead to overheating of the valves and head.

I wasn't aware of that - thanks for the warning.

 

[swamper]

I used 1/4 of a tank on 7 runs down the strip at Santa pod..!!

 

[David Cullen]

on the use of high octane, any garage i go to i check with the clerk and none of them seem to know what they are using in the garage... frustrating for me :-/

 

[oldcarman]

Octane minimums have to be posted on the pumps here!! JIM

 

[hard top]

Yeh, but he lives in Ireland.......

 

[oldcarman]

Yeh, but he lives in Ireland.......

I know, don't they post ratings there?