[wolfy]

Hi all

That's the second tank of fuel I have kept an eye on and recorded. The first time it averaged 33.6, this time she averaged 28.7

Mixed driving but seems a bit low?

What are your experiences?

Justin

PS How can I check to see if my tank is leaking, parked on a very slight incline and noticed fuel remnants on the wet tarmac behind the car, there was no smell. So it may have been the car that parked there recently.

[grayfox]

tbh 33.6 is very good, 28.7 seems more like it, always though it completely depends on your driving style. As it happened did you do a longer motorway strech getting the 33 and more pottering about then recording the 28? Also remember the first half of your fuel gauge will always decrease slower than your second

[Ian G]

Tank leak is best diagnosed by dropping the tank down and inspecting it properly. Although if you have fluid on the floor that may also be a bad sign.

[MichaelW]

I drove 70 miles on the motorway at bang on 70mph and averaged 38mpg according to the Scangauge, I think I averaged 30mpg on a full tank the other week.

[quicknick]

We have two Pumas in the family and they average between 35 and 38 mpg.

[wolfy]

Somebody on Pistonheads said it may be the lanbda sensor? would this not flag up a dashlight?

J

[MichaelW]

wolfy, on 06 February 2012 - 12:24 PM, said:

Somebody on Pistonheads said it may be the lanbda sensor? would this not flag up a dashlight?

J

Not unless it had failed I believe. They can degrade over time, you can soak them in lemon juice overnight to clean them believe it or not.

[wolfy]

I'm going to have a go at reading any fault codes from the odometer.

J

[wolfy]

Right this is what it shows

dtc 9318
dtc 0115
dtc 9201

Any ideas?

[ScubaSteve]

odometer faults wont tell you anything they just relate to electric faults (if any) with the dials themselves and subcomponents

[ScubaSteve]

heres the complete list of dash diags

[Kizza]

i thought mine was a bit low but when i thought about it i am getting 60 ish miles for a 10er so i would think thats about 40 to the gallon.

cheers kieran

[Chris H72]

I do quite a lot of miles in my 1.7 on a mixture of roads.

Most of the time it gets around 40mpg although this dropped to 34mpg the other week following some enthusiastic B road blasts.

[salford doorman]

mine used to do 34mpg on a run but now it does zero mpg LOL

[symonh2000]

I owned my Puma 1.7 at the same time as I own my current 528i (E39)

The fuel consumption for both of them was pretty much the same at around 29-30mpg in normal driving and upto 35mpg on a run.

This post has been edited by symonh2000: 10 February 2012 - 09:58 PM

[Dogsbody]

My FRP isn't too good at MPG.

My Best ever to a tank, mainly motorway and keeping the revs below 4K


My Worst by miles, all airfield trackday. revs at 7K + all day

[chrisw666]

I got a bit geeky and measured my first 2 full tanks brim to brim.

Tank 1 was over a typical week and a bit for me with a few long runs and more short ones, it returned 28.4 mpg.

Tank 2 was an 80 mile round trip at 65-70 and then a 210 mile motorway run at an average speed of a shade over 70 but very steady driving in light traffic, this one returned 37.8 mpg.

I didn't bother with the sums for yesterdays run over some fantastic traffic free moorland roads when I finally found out just how good the Puma can be in the right environment.

[millemille]

Averaging 36.4mpg at the moment during normal driving.

[whitewheels]

mine does 42mpg normally but after my remap I don't know testing at the moment... will let you know soon


cheers Paul

[AdamD]

40 quid gets me 200miles.

Is that bad?