Mk 8.5 mpg on long motorway trips

[DrivenToDistraction]

First off, I know that decent fuel consumption is not a top priority when buying a GTI but it is still a good thing to have! I don't do that much motorway driving these days but I did have a long trip down to Devon last week. On the 140 mile-section of the M5 from the M42 junction down to Exeter I averaged 48.7 mpg. That was pretty much cruising at 70 mph the whole way in Comfort mode (apart from a 10 mile section of road works where there is a 50mph speed limit). I looked at some previous threads for the Mk8 and someone had got 51.3 mpg on a motorway trip but I was still pretty impressed given that I only get around 30 mpg on my short A-road trips locally.

Its also the first time I have extensively used Comfort mode and I found the high speed pick-up/throttle response to be pretty good. This was in the context of quickly getting past the numerous 'middle lane hoggers' cruising (day-dreaming?) along at 60 mph.

[fredgroves]

Probably tight fisted me with that mileage figure   

Yes if you use travel assist and don't have the car in sport mode you can get decent mileage.

For the non motorway bit, learn to come right off the throttle (enabling engine idle) and only press it lightly when you do push it.

Forty plus on A roads is possible too!

[Adam T7]

Best I’ve ever had (albeit in a 7.5) was 46.2 driving from south of Manchester to Yeovil, 220 miles, A & B roads plus motorway. I thought that was quite impressive.

[sipj]

I think the MPG will improve with age.  I had my old 7.5 GTI PP from new for 6 years and could get 55/56 MPG of a good run.  Managed 45MPG on the 8.5 so far, but things will improve.

[MarkHowells]

This might be a stupid question, but does using unleaded, super unleaded, V Power etc make much difference to the mpg?

[WebRoP]

This might be a stupid question, but does using unleaded, super unleaded, V Power etc make much difference to the mpg?

There's a thread on this i posted a few weeks back which might help.. nobody really knows though i have seen a YouTube vid from JayEm on Cars where he's got a fuel expert on which was interesting. Shell V Power certainly comes out very well compared with other premium fuels.   

[DrivenToDistraction]

This might be a stupid question, but does using unleaded, super unleaded, V Power etc make much difference to the mpg?

There's a thread on this i posted a few weeks back which might help.. nobody really knows though i have seen a YouTube vid from JayEm on Cars where he's got a fuel expert on which was interesting. Shell V Power certainly comes out very well compared with other premium fuels.

In theory, you should get better higher mpg with 98-RON fuels like Shell V power, but there is very little proper scientific evidence on this subject. I recall a couple of Fifth Gear TV programmes (from many years back) where they used a Golf as the test car. V-power is obviously significantly more expensive, but the "idea" (put forward by Shell!) is that this is partially offset by higher mpg. I'm not convinced though and it probably depends on the amount of start/stop in a journey as well as individual driving style. I stick to regular unleaded. I seem to recall reading somewhere that VW recommends 98-RON for the Clubby?