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Model specific boards => Golf mk7 => Topic started by: cyclopops on 08 December 2015, 22:53

Title: GTD MPG with DSG
Post by: cyclopops on 08 December 2015, 22:53
Hi,
Today i was able to take out a Golf GTD with DSG with the view to leasing one, but in Manual.

My question is on my test drive the mpg figure was a bit disappointing as it only achieved 38 mpg from cold and the drive included about 5-10 mins on motorway, and about 10-15 mins on road (didnt look at the time)
this was sticking to the speed limits and no harsh acceleration. (I am a driving instructor)

this isnt normal on the DSG is it? i see on here the manual getting around 47 mpg.

cheers
Title: Re: GTD MPG with DSG
Post by: p3asa on 08 December 2015, 23:15
Welcome.

If you jump into the TDI section above you should see figures in the MPG thread.

http://www.golfgtiforum.co.uk/index.php?board=128.0
Title: Re: GTD MPG with DSG
Post by: Sootchucker on 09 December 2015, 07:53
Was the car started from stone cold or warm ?

Diesels take much longer to warm up than petrol. For instance my wife's Polo Blue GT can go from stone cold to normal (on the temp gauge), with warm air coming out in about 2 miles (4-6 minutes), whereas my GTD will take at least 7-10 miles and 15-20 minutes to reach the same temperature (obviously times fluctuate when the ambient temp is warmer or colder, the above is just as an example).

Thus, for my journey to work in the morning (approx. 10 miles, 30 minutes A and B roads), I usually at this time of year end up with around 42-45 mpg. However if I do the same journey when warm I can usually add 5 or so MPG to that figure.

My GTD really only starts to show it's advantage on a good run. For instance on a trip to Scotland a month or so ago, 480 miles round trip, adaptive cruise for pretty much all of it set at 75mph, I got a true 58mpg. If I'd have set the cruise to 65-70, I'd have easily topped 60mpg (best I've ever had is a true i.e. calculated, 64.7 mpg over 150 miles on a slow cruise back with my elderly parents in the back).

Also, don't forget that generally DSG adds around a 4-7 mpg penalty in MPG over a manual box (eg according to the official figures - Extra urban - 76.3 vs 68.9).

Basically diesels don't perform their best over short journeys, and only really come into their own in journeys over 50 miles or so. Having said that, even high thirties or low forties on the warm up cycle would probably still beat the mpg from a petrol GTI (although maybe not by much), and certainly much more than an R, so whatever MPG you get, it will almost always be better than a petrol equivalent, after all, it's one of the main reasons people (like me) buy them in the first place.

TBH though, now my mileage has dropped, if I was buying again (which I'm not), it would most likely be a GTI not a GTD, as the difference in fuel costs over my 8,500-9000 miles per year wouldn't be that significant.
Title: Re: GTD MPG with DSG
Post by: J400uk on 09 December 2015, 09:12
Manual MPG is better than DSG on the GTD

I generally get about 50 from mine on average but at least 75% of my driving is motorway
Title: Re: GTD MPG with DSG
Post by: mjh_056 on 09 December 2015, 09:56
The Sootchucker summed it up perfectly.

Had mine over 2 years now and do not drive like Miss Daisy and its mainly town and A roads with occassional Motorway haul and my average is always in region of 39 MPG which personally think is pretty decent.

If do a good long run it easily gets into the mid 50's

As said, either way its going to beat a petrol on MPG but the lower the mileage and shorter the journeys the gap closes.

When got my GTD my role had me doing 18 k a year and regular motorway runs to offices. One role change soon after getting the GTD and only done 19 k in two years.

So looking at an R next time out for that 5% of fun everyone alludes given mileage do now.

Having said that still love the GTD, its no slouch and economy does bring a smile too.

You will always have good economy with the GTD regardless of miles and how long journeys are but if you are looking for the high 40s and 50s you really have to be on motorways regularly to achieve. 
Title: Re: GTD MPG with DSG
Post by: monkeyhanger on 09 December 2015, 15:40
My dad's DSG GTD is around 10% thirstier than my manual GTD ever was. My manual R is giving me a 32mpg average yet most people here with a DSG R struggle to get a 27mpg average, and I don't spare the horses.
Title: Re: GTD MPG with DSG
Post by: remlapeel on 09 December 2015, 19:32
Yeah my DSG R is averages 28mpg and I do mostly B roads with little traffic.
Title: Re: GTD MPG with DSG
Post by: cyclopops on 10 December 2015, 09:50
Thankyou all for the helpful replies  :smiley:
Title: Re: GTD MPG with DSG
Post by: Poached on 10 December 2015, 14:53
So many people purchase Diesels based on those manufacturers figures and the reality is often quite different...
Title: Re: GTD MPG with DSG
Post by: Sootchucker on 10 December 2015, 15:44
True, but if you look at my fuelly account, tracked over nearly 20,000 miles and 2 and a bit years, my average is still 46.3mpg and most of my journeys are either urban or A roads (little motorway). So for a 184ps warmish hatch with DSG, capable of doing over 140mph and 0-60 in low 7's I'm pretty pleased with that.

http://www.fuelly.com/car/volkswagen/golf/2014/sootchucker/235241
Title: Re: GTD MPG with DSG
Post by: p3asa on 10 December 2015, 15:48
http://www.fuelly.com/car/volkswagen/golf/2014/sootchucker/235241


There is something up with fuelly as it is telling me your stats are:

38.6
All Time
Avg MPG

and it told me mine were 35.3mpg over in the GTD - Real Life MPG thread (http://www.golfgtiforum.co.uk/index.php?topic=257656.msg2525671#msg2525671)




Title: Re: GTD MPG with DSG
Post by: Sootchucker on 10 December 2015, 16:58
p3asa, looks like you are viewing in US gallons. Top left hand corner, hit the drop down and set to "UK" which is imperial gallons.

Yours are actually 42.4 mpg in UK units.
Title: Re: GTD MPG with DSG
Post by: p3asa on 10 December 2015, 17:06
No definitely UK although I see toggling between UK & US doesn't actually change the All time Avg but changes everything else.