3.0 TDI Realistic MPG

[johnb]

Hello

I'm wondering if any A8 3.0 TDI owners can give me a reaslitic idea what mpg can be expected on a run?

At present I'm doing just under 100 miles a day round trip to and from work. On the usual Auto trader is list 44mpg on a run but not sure how accurate this is. I'm not a fast driver happy to sit between 60-70 mph just not sure what realistic expectations are for an A8. Might be an option to have A8 and something more economical for work.

[PsYcHe]

Doing 65, my 4.2tdi will give me about 44.. so you should get well above that for a 3.0

[ScottD3]

Just done Plymouth to Bristol and got 41mpg.
Then Bristol to Birmingham and got 41mpg.
Round town I'm getting 30mpg.

[Lyons]

My DIS says my average is 35 odd per tank, but working it out properly at only 29/30.

[47p2]

I would say mid 30s from my experience, no way will the 3.0 diesel get 40+mpg and I do mostly motorway miles at a leisurely pace

[manca]

I would expect late 30's on a run at about 70 in my 3.0tdi.....when I'm trying I have got into the shallow 40's. Around town I get from mid twenties to low thirties....lots of traffic and it struggles into the twenties though.
It'll be interesting to see the variation. I would be considered gentle on the loud pedal as a rule.

[ScottD3]

From the day I bought mine I've always got 40mpg motorway to 30mpg round town.
And I might have a faulty MAF.

This is based on DIS1.
Which I think is the start of the trip.
DIS2 shows something different but I think that's the constant since the time of reset.

[snapdragon]

I get
18-20mpg in urban traffic jams.
28mpg in light urban traffic
34mpg on fast motorways and A roads, including urban at each end.
36-39 mpg if really trying on long runs.
Would really struggle to get over 40mpg unless setting cruise to <70mph and resetting the DIS OBC.


***EDIT*** I should add my car runs cool (~70˚c) when a lot of air or cold air is going through the grille (fast speeds or winter).
Suspect EGR cooler thermostat is letting water bypass the normal thermostat.

[roberto]

Originally Posted by snapdragon

I get
18-20mpg in urban traffic jams.
28mpg in light urban traffic
34mpg on fast motorways and A roads, including urban at each end.
36-39 mpg if really trying on long runs.
Would really struggle to get over 40mpg unless setting cruise to <70mph and resetting the DIS OBC.

Just about spot on that snapdragon.....same as mine

[ScottD3]

I left Birmingham tuesday morning and drove all the way to Plymouth with CC set to 75mph and I got 42mpg on DIS1.
DIS2 was showing closer to 35mpg but I've not reset that since I bought the car.