MK7 GTD - Real Life MPG

[ffrank]

Ha ha, that is pretty impressive indeed  Unless you are nearly always doing short journeys? Even then...

[p3asa]

Bloody hell P3asa, you must be "enjoying" your GTD to only average 35mpg :-)

I'm averaging 48mpg over 20,000

I think that is my fill ups you were looking at  35 fill ups in 18 months

EDIT: Just had another look and yeah it says 35.3mpg which is bizarre as the vast majority of fuel-ups are at least 40mpg with the lowest being 37mpg. Strange.

[ffrank]

Very bizarre...

Is it a bird, is it a plane, no it's p3asa....   

[p3asa]

Very bizarre...

Is it a bird, is it a plane, no it's p3asa....   

 

[davewilliams000]

Not seen this thread updated for a while, and thought I'd join in.

Got my GTD at end of January (pre-reg), and have done about 3K since then, which is a lot more than I normally do in that amount of time. Was initially a bit disappointed with MPG, but as the miles have gone on it and the temps are up a bit now it seems to have improved by quite a bit. Had a new record high on the way to work today...


Having said that I didn't get to press the throttle that much today! My journey is about 80% motorway, with most of that limited to 50mph with the cameras on the M74 at the moment.

Long term average is sitting about 44mpg. Since refuelling it's 48 so am having a good week at the moment!

However, so long as I can get above 45 on average I will be happy, as I do like to "enjoy" the performance at most opportunities I get, especially going down the on ramp to the motorway

[monkeyhanger]

Diesels are very sensitive to ambient temp and humidity. In the depths of Winter, on a 10 mile journey, you'll be lucky to crack 40mph unless you drive like a nun.

In the height of Summer, you can cruise on the motorway at 80mph with the aircon on and see 58mpg (i'd expect 63mpg if you're willing to religiously stick to 70mph).

[djwoody]

Hi.
I have a 2013 GTD 5dr and I can't get my average MPG above 40mpg!!! And that is driving it very sensibly.
I once got 50mpg on a 100mile trip sticking to 65mph.

Does anyone have any recommendations on what could be wrong with the car?
A lot of people on here are getting high 50s or 60s on a run. I'd be happy with mid to late 40's average.

My car has 30k on the clock.

Chris

[monkeyhanger]

Hi.
I have a 2013 GTD 5dr and I can't get my average MPG above 40mpg!!! And that is driving it very sensibly.
I once got 50mpg on a 100mile trip sticking to 65mph.

Does anyone have any recommendations on what could be wrong with the car?
A lot of people on here are getting high 50s or 60s on a run. I'd be happy with mid to late 40's average.

My car has 30k on the clock.

Chris

What is your commute like? Distance etc? The GTD takes 8-10 miles to warm up. If you are doing a few miles to work each day and the car doesn't get a chance to warm up then you'll be lucky to hit 40mpg. If you don't give the car a chance to clear out the DPF via regen via a decent run it will be choked all the time. With a clear DPF, the car should average high 50s in the Summer on a long motorway run when maintaining 75-80mph.

A 100 mile trip sticking to 65mpg should yield over 60mpg. My GTD once did 58mpg going from Newcastle to Leeds and back in the middle of Summer with the aircon on all the way, maintaining 80mph for most of the journey.

Is it using any oil (or have you not had it long enough to know if it needs topping up between services?)? Oil consumption is characteristic of a poor run in when new, and poor mpg usually follows.

[djwoody]

My commute is 20 miles each way and I stick to 65mph.

I drove from Middlesbrough to Leeds last week and it only got up to 47mpg sticking to 70mph.

I have had the car for around 6 months and have just had the oil changed a month ago, fuel consumption is exactly the same.

I wonder if it could be something else, fuel filter perhaps?

[monkeyhanger]

My commute is 20 miles each way and I stick to 65mph.

I drove from Middlesbrough to Leeds last week and it only got up to 47mpg sticking to 70mph.

I have had the car for around 6 months and have just had the oil changed a month ago, fuel consumption is exactly the same.

I wonder if it could be something else, fuel filter perhaps?

20 miles each way on your commute - your DPF should be as clean as a whistle with normal driving enough to provide passive DPF regens. Your car definitely doesn't seem right. I drove my GTD a lot harder (higher average cruising speed than you seem to be doing and got far better mpg. Is it still under warranty (just)? Could be a fuel filter or stuck EGR valve.

Is your car manual or diesel? Manuals are around 10% more frugal like-for-like in my experience. Might be worth getting your brakes checked for excessive wear too.

I have a 20 mile commute and this week, i'm driving an Audi A3 150TDI Saloon courtesy car (and driving it very hard), still managing 60mpg to work and 55mpg home (roads a bit busier going home) - i'd expect a GTD to be 10% thirstier than this car.

Maybe try a fuel additive for cleaning the fuel system, like Wynns Xtreme diesel system clean?