MK7 GTD - Real Life MPG

[dippy_x]

I had my car in the dealers today to get an issue looked at.  Got a loan of 2014 Tdi bluemotion golf.  It's about 7 miles to the dealers. On going to pick my car back up the Loan car effortlessly did a whopping 64mpg. My GTD on the drive back home just about managed 49.9mpg!

I wouldn't swap my GTD for anything but I think the official MPG figures have raised expectations too much.

[Duroo72]

Pleased to say my economy has improved with mileage.

I've now covered 10,500 miles since an early January delivery and am now seeing a regular 60mpg on the motorway at 70mph dropping to mid/high 50's on A roads.

This is in Eco mode and changing gears when the car advises on the mfd.

When I completely ring it's neck mpg can drop to early 30's so quite variable, id say my old Mk5 GT 170 would get near enough 500miles to a tank give or take a few miles no matter how hard or easy I drove it.

[C2K]

I did Heathrow and back on Saturday, 200 miles prettymuch on the dot in Eco mode, almost all on ACC. On the way there, it was usually around the 48 mpg mark in instantaneous, as if it was a constant hillclimb. Achieved 48.2 on the way there with some low speed action at the end to be fair as I was very early.

Coming back, having booted it at least 4 or 5 times to join/change speed during lane changes, it was sitting at 50.2 when I got home despite arriving home with a forced regen at 1600 miles (as per other peoples findings, computer seems to force a regen at 800 mile intervals). Most significantly though, the instantaneous figures under the same conditions were a good 10mpg different coming back, without much change in ambient temp. It climbed steadily all the way home despite the aforementioned hoofing of it.

It delivers 45MPG round town with ease, but struggles to build much on that on the motorway as in my case lots of town miles usually bring a requirement for a soot burn as soon as a whiff of a long journey comes about.

[Sootchucker]

Boll*cks to the MPG, that Night blue GTD of yours with the Santiago's looks the nuts 

[C2K]

Haha thank you very much! I love her regardless of the mpg! 

[KyleB]

Easily hitting 52-54 MPG recently regardless of temperature. Had a short run out, which was about 8 miles round trip though and didn't get over 41. Think this car really struggles with short distances.

[Mohsin]

KyleB: Nail on the head - on my daily work run of approx. 40 mile round trip, 52mpg to even 60mpg is achievable. However, on short journeys I have even seen a poxy 30mpg average. Totally understandable but still correct that this car is not meant for short town journeys.

[monkeyhanger]

Mpg depends on a combination of driving style, journey length and temp. Assuming the driver is a constant, with my driving style in my GTD (80mph on the dual carriageway/motorway):

Doing a 5 mile journey at 0/10/20C ambient temp, I’d expect 35/40/43mpg.
Doing a 10 mile journey at 0/10/20C ambient temp, I’d expect 42/47/50mpg.
Doing a 15 mile journey at 0/10/20C ambient temp, I’d expect 48/52/54mpg.
Doing a 50 mile journey at 0/10/20C ambient temp, I’d expect 51/54/55mpg.
Doing a 150+ mile journey at 0/10/20C ambient temp, I’d expect 52/56/58mpg.

All those mpg figs are indicated (MFD).

0C ambient temp is a mpg killer – very hard to get much over 50mpg no matter the journey length, difference is less pronounced between 10 and 20C than it is at 0 and 10C, the temp gains pretty much level out at 25C.
Doing less than 8 miles in winter and 6 miles in the summer is a mpg killer – until the car is fully up to temp, it’s going to be very inefficient. The influence of the first part of your journey on the whole journey’s mpg diminishes with distance. If your preference is to sit at 70mph rather than 80, you can add 10% to the above mpgs.

That’s pretty much the way it is with real life fuel consumption, wondering why you only get 40mpg and someone else is getting 55, chances are that you hoof it a bit and have a very short commute, and they do 50 miles to work each day, sticking to the speed limits because half of their 50 mile journey is plagued with average speed cameras.

[SNR]

Almost 4 months in , 6,900 miles. Mainly shorter distance, clear road runs, some long journeys inc. m'way. Long term average showing 44.9 mpg. Bizarre thing is (vs 2 other cars I've got) is huge inconsistency on same routes/similar conditions. It can vary between 39 and 50... Never see that on other cars, current or past!
Like last post, weather has negative effect, DPF burn off also seems to have a negative impact.
Doesn't  affect me personally, but feel sorry for those that may be choosing cars partly based on manufacturers claims. I know some senior car industry wonks and have learnt about what companies do to arrive at the figures... Should be rectified. Run some BM 3's on a company fleet and they easily do 60+ fairly regularly.

[davyk31]

60 mile round trip today in the GTD. Drove there, 30 miles, in Eco, always inside the speed limit. Was a bit shocked to find the mpg at only 45, must have doing a regen but would that have such a effect over that distance?

Drove home in normal mode, bit faster in places with some decent acceleration moments and averaged 54 on that trip which was more like what I expected.

Only 1400 miles on the car by the way.