MK7 GTD - Real Life MPG

[broomthundle]

Great - thanks. Looks like it'll be well into next year before i get to experience them for myself.

[Andy B]

On the topic of 'regens', I had no idea about them either.

This technical explanation is very thorough - it might be a little out of date now though:

http://uk-mkivs.net/forums/t/343695.aspx

In particular, the bit on that link about what happens if you keep interrupting these regens is a little worrying! They also recommend people don't use a diesel on small islands!

We use the car mainly for out-of-town journeys of an hour or more, so we probably would be good candidates for a diesel car, but still...

[Skinnee D]

On the topic of 'regens', I had no idea about them either.

This technical explanation is very thorough - it might be a little out of date now though:

http://uk-mkivs.net/forums/t/343695.aspx

In particular, the bit on that link about what happens if you keep interrupting these regens is a little worrying! They also recommend people don't use a diesel on small islands!

We use the car mainly for out-of-town journeys of an hour or more, so we probably would be good candidates for a diesel car, but still...

Thanks, that's interesting.  As the active regen is evidently helping to avoid the risk of damage to the DPF I'll be less annoyed now when it's sat doing one for 15 mins on the driveway

[monkeyhanger]

I have high hopes for my mpg having just ditched the Shell V-power and filled up on Esso. The 4 mile drive home from the petrol station (on the way home) after fill-up saw the car being noticeably more spritely.

[monkeyhanger]

First commute with Esso today and the car is noticeably perkier than with V-power. Less throttle needed to do anything. Indicated 47.2mpg at 4C ambient temp (likely actual 44.5 - 45mpg), which was the best I achieved if I drove like a nun with V-power at 12C ambient temp a few weeks ago. Much better. If I can achieve 45mpg actual on my commute in winter then I will have bettered my Scirocco (just).

[stuart.cameron]

First commute with Esso today and the car is noticeably perkier than with V-power. Less throttle needed to do anything. Indicated 47.2mpg at 4C ambient temp (likely actual 44.5 - 45mpg), which was the best I achieved if I drove like a nun with V-power at 12C ambient temp a few weeks ago. Much better. If I can achieve 45mpg actual on my commute in winter then I will have bettered my Scirocco (just).

Sounds promising!

[Skinnee D]

First commute with Esso today and the car is noticeably perkier than with V-power. Less throttle needed to do anything. Indicated 47.2mpg at 4C ambient temp (likely actual 44.5 - 45mpg), which was the best I achieved if I drove like a nun with V-power at 12C ambient temp a few weeks ago. Much better. If I can achieve 45mpg actual on my commute in winter then I will have bettered my Scirocco (just).

Good news MH.  Who'd have thought that a "premium" fuel would actually work out worse mpg - shocking...

[KyleB]

Quick update from me, MPG seems to of improved in the second half of the Shell tank. Still not getting any better MPG than the supermarket fuel but I'm willing to give it another tank or so.

Think the length of journey really does affect MPG. On my 35 mile trip it's easy to get around 48-50 with good acceleration and cursing between 70/80 but anything lower mileage wise and I struggle to see over 45.

[Misterp]

Still slightly concerned about my town commute mpg. I have altered my route so there is limited stop start (I'd say 3). But still struggling to get above 40mpg. Motorway wise I easily get 48/52.

[monkeyhanger]

The biggest difference I have seen with this and my other VWs is that even though the water temp gets up to normal quicker than in previous VW TDIs that I have had, the oil temp is a little slower to get to temp, which will have big mpg (and soot build up for regen) consequences on shorter journeys.

On the drive home from Newcastle last night (8 mile journey at 8:30pm, very clear roads, a few miles of 30/40mph driving, 5 miles of 70/80mph driving and then another mile of 30/40mph driving), the car managed 48mpg despite a regen going on which left the fans blaring for a good 5 mins after I got home. This morning the car only managed 43mpg getting into work. It was a smidge colder than yesterday (2C), but mpg seemed to climb quite quickly to 41mpg and then it crept up to 43. I’m wondering whether a lot of power generated by the engine in coming to work was used in charging the battery after the fan cooling following regen had probably used quite a bit of the battery’s capacity, hammering my mpg.

First stall ever on my car today, handy that the car restarts itself as soon as you dip your clutch.