My MPG is terrible

[Hurdy]

Meadowhall is my local too

21mpg is low.

Even with my remap and enthusiastic driving I get more than that as an average

[winrya]

town driving I get 26 mpg, motorway with 80mph indicated average 36mpg, country lanes 38mpg or 32mpg driving hard. Most my trips are sub 3 mile town driving and my overall average is 29.5 mpg.

[Phil mcavity]

yes if you live in rural area's then you would expect to get 28-30 mpg, but inner city dwellers will get between 25-27. Stop starting. traffic lights and cueing traffic, watch the trip reading lower the longer you sit stationary.. i try and avoid the range reading as its deppressing watching your tank range drop 20 miles for a 5 minute traffic cue 

[Peely-wally]

MPG computer is never very accurate, try doing it old school, fill her up and take note of the mileage.

When I first got my car I checked the computer mpg and found it to be spot on.

I have noticed that since the weather has warmed up I can get an extra 3mpg on my route to work, on mainly motorway and Dual carriageway.

Can actually get 37 to 38mpg. Note the 'can'!

[martininwillerby]

Just one more thing.... as a example if I fill her up to the brim I use to be able to get 90 miles to the 3/4 mark now when I do it I get about 78/80 miles.

martininwillerby

[stevieC]

On a long trip with cruise set at 80 my gti will average 37mpg.

with a servere gale force 9 behind you and a downhill run, im sure your right stevie!

There's not much difference in mpg if my cruise is set at 60 or 80,and Phil you won't get anywhere near that in the ed30.

[Phil mcavity]

On a long trip with cruise set at 80 my gti will average 37mpg.

with a servere gale force 9 behind you and a downhill run, im sure your right stevie!

There's not much difference in mpg if my cruise is set at 60 or 80,and Phil you won't get anywhere near that in the ed30.

I found after owning all 3 GTi's , they are all the same. i still get 310-320miles to a full tank, i thought the ed30 would be more, but was pleasantly surprised

[martininwillerby]

I would say i'd get about 270 to a tank of juice... will try seeing I filled to the brim today before the trip...

Martininwillerby

[stokeballoon]

My ED 30, run on V-power, gives about 33-35 mpg, I rarely do short journeys, do about 1000miles a month in 4 main journeys (weekly commutes) and a bit of running about.

I get about 370 from a tank, always use the AC, and boot it when needed.  The Retro fitted cruise has not made a large difference.  I am very happy with it.

[martininwillerby]

Being told on another site that it could be this... PCV

Positive Crankcase Ventilation failure

Background:
The positive crankcase ventilation is supposed to let gases get sucked from the crankcase to the intake manifold when under vacuum. The problem is, when the pcv system fails, and allows positive pressure (boost) to go from the intake manifold back into the crankcase.


The latest PCV is the “G” version. To see which version you have, take a small mirror, and stick it under the pcv valve. The last letter identifies the revision (“E” is shown below). The part # is under the round section:



Symptoms:
-Typically you will see a slight drop in boost pressure. When my pcv failed, I saw a 2 psi drop across the board.
-Some oil will be pushed out through the oil filler cap, and onto the valve cover, and may possibly go towards the coil packs. There may also be some oil on the bottom side of the engine cover, where the oil filler cap is.
-There might be a slight decrease in MPG.
-Rear PCV failure usually results in oil accumulation around the DV, and will produce a little blue oil smoke at WOT applications.

Solution:
-There is the Digitalhippie fix which puts a check valve into the line from the crankcase to the intake manifold. For those who want a spare of the hose where the check valve is installed, the part number is 06F 103 221 F. You can read more about it here: http://www.golfmkv.com/forums/...=8952
-You can also upgrade to the latest PCV “G” valve. There have been very few failures reported with this PCV. Please verify the PCV you have before upgrading.
Part numbers for this upgrade:
PCV valve cover assembly: 06F 129 101 G
PCV valve cover gasket: 06F 103 483 E
PCV valve cover to turbo hose: 06F 103 215 A
PCV tube to turbo metal gasket: 06F 145 757 F

Do we in the UK have these...