MK7 GTD - Real Life MPG

[noobmonkey]

Hmmm well 17.4 miles with almost no traffic, sat at 60-65mph with ACC and then a loada stop start for 2 miles in Brighton going up and down hills.... and i get an awesome 43.1mpg! (Awesome in comparison to my usual).
Return trip in 20 minutes, almost rush hour, eeeek!

I understand people say get it warm etc... but if i do, the mpg drops much lower.  I still think it is my short trips doing this, rather than the car being at fault, and i will give it a fair test over the next month or so.

My total average since new is now at 36.7mpg (380 miles - so not many miles to be honest)
 

[Skinnee D]

For those with better mpg, are you seeing fewer regens? Does your resting warm oil temp generally exceed 90C when not under significant load (not significant meaning maintaining a speed of 50mph or less). What about those with poor mpg/high frequency of regens – seeing the same engine temp profile as me.

MH - I reckon that my oil temp is 30-40degC behind the water when warming up.  Resting warm oil temp is at least 90degC.  Active regens have been pretty infrequent so far (can all that heat and fans really be helpful for emissions??? ) - maybe 3 or 4 so far in 2700 miles.  Persistent communting days without a decent run eventually seems to trigger one.  I'm finding it difficult to gauge when the passive regens are happening, unless I'm on a trip with traffic/lights where I can see the auto stop is being blocked.

[Misterp]

So they were proposing to fill up at your expense and run the car for a good few days and then determine how much it used by filling again (at your expense) – sounds like a great deal…..for them.

They should be able to act off the MFD indicated mpg and assume it is 3 – 5% optimistic. At that point they should be able to decide whether your mpg is reasonable or not. Presumably they can look at the engine oil temp profile over a period of time (hoping the MFD logs that since last fill at least etc).

I do think the key to reasonable mpg is a clean DPF and getting up to normal running temp as quickly as possible. I don’t think the MK7’s DPF clearing regime is conducive to decent mpg on mine.

My car’s engine oil takes almost twice as long to get to temp as the Scirocco’s did. The oil temp is about 40C behind the water temp on the warm up cycle, whereas on the Scirocco the oil was about 20C behind the water and it easily held 94-95C for the rest of the journey. Mine seems to be maintaining a temp of 90C unless it is in a medium/high load situation where it will creep up (but also seems quick to drop back off to 90C when it isn’t under much load).

For those with better mpg, are you seeing fewer regens? Does your resting warm oil temp generally exceed 90C when not under significant load (not significant meaning maintaining a speed of 50mph or less). What about those with poor mpg/high frequency of regens – seeing the same engine temp profile as me.

If my car’s management system is keeping it atypically cold then I think there might be something in it.

They called me at 4.30 to say checked the car there is a noise from the suspension but we don't know what it is requires further investigation so they will keep the car until they can find the problem. I told them what other ppl are experiencing and the guy said he would make sure that these things are checked off. 

They said they ran some tests and the car readings are within the requirements so no issue with mpg. He will show me a reading when I go to pick it up.

[2014GTi]

My total average since new is now at 36.7mpg (380 miles - so not many miles to be honest)

I have covered 351 miles in my GTi, total average since new is 33.1mpg 

[dippy_x]

I made a trip down to Manchester and back today.  225 miles down, ACC set to 75mph and I averaged 46mpg.  This is with the boot fully loaded.  The trip back up (with an empty boot) got me 50.4mpg... Which is slightly disappointing.  I was expecting to be closer to 55mpg.  I seem to be able to routinely hit between 52-55mpg on 60 mile trips between Glasgow and Edinburgh.

My first drive in the car was pickup from Warrington then back home to Edinburgh.  I hit 51mpg on that journey.  I'm now approx 2200 miles in and nothing has changed... Yet.

[monkeyhanger]

I made a trip down to Manchester and back today.  225 miles down, ACC set to 75mph and I averaged 46mpg.  This is with the boot fully loaded.  The trip back up (with an empty boot) got me 50.4mpg... Which is slightly disappointing.  I was expecting to be closer to 55mpg.  I seem to be able to routinely hit between 52-55mpg on 60 mile trips between Glasgow and Edinburgh.

My first drive in the car was pickup from Warrington then back home to Edinburgh.  I hit 51mpg on that journey.  I'm now approx 2200 miles in and nothing has changed... Yet.

No change in mpg, but any change in performance? My car seemed to get a noticeable boost at 1900 miles/3000km, this did also coincide with Sootchucker providing power/torque graphs and I started accelerating to 4000rpm.

Having undergone the latest bout of forced regen (averaged 42mpg for the last 40 miles), i've done 2 trips at 48mpg. Going on a longer journey today, hoping to see mpg well into the 50s.

[noobmonkey]

My total average since new is now at 36.7mpg (380 miles - so not many miles to be honest)

I have covered 351 miles in my GTi, total average since new is 33.1mpg 

Meh and worst of all - i misread :| - i'm actually on 33.1 as well :| hmmmmmmmmmm!

[C2K]

Can't understand why anyone would choose this option,  it will still sound like a tractor! Buy a gti if  you care about exhaust note!

 If your only interest is red calipers,  you can buy a tin of smooth hammerite for a tenner and a decent can of lacquer which would last years!!

[dippy_x]

Can't understand why anyone would choose this option,  it will still sound like a tractor! Buy a gti if  you care about exhaust note!

 If your only interest is red calipers,  you can buy a tin of smooth hammerite for a tenner and a decent can of lacquer which would last years!!

Ahem... Wrong thread?

MH - Can't say ive noticed any changes in performance.  You had a fairly similarly specced Roc to compare to where as my previous motor was a sh!t box!

[C2K]

Don't know how it managed to do that as I could see the post I was replying to!  Stupid phone!

Feel free to delete it!