MPG When Towing

I believe it. I can get above 35mpg from my Cherokee 9 speed auto when towing and always above 30 mpg average. towing a twin axle 1800mtplm van.

Cough cough cough ...... it's a bit dusty here. 

You've just replied to a 12 month old thread   

We have an Audi Q3 184 Diesel Quattro DSG (yes it's a mouthful of words).  Solo on my husbands commute (lots of stop start into Bristol off the M4) he get 37.5 MPG.  If I were to drive it solo without his commute I'd get circa 42 MPG.

If we hook up our 2017 Delta RI, which is a big old beast we see 27 MPG pretty much religiously.

Had my 6 year old CRV re-chipped this year and get an additional 50 miles per tank when running solo and over 32 when touring.  Course thats not scientific but close enough for me.  It was a very good tow car before now it's brilliant.

I read of these amazingly frugal vehicles and wonder why they are not sold to the general public.
It particularly galls as I have tested countless diesels during the development of them and even then in idealised conditions they fell well short of the efficiency needed to “achieve” what is being claimed by some very privileged owners.

My BMW X4 3.0 diesel returns about 38mpg solo here on the Continent. When I'm in the UK, due to lower average speeds, I can better that quite a bit, but when towing it drops to about 25mpg. I have found that the increase in fuel consumption, which amounts to about 50%, has been remarkably constant with all the various cars that I have used for towing.

My Freelander 2 (190bhp) will tell me its doing close to 30 mpg average when on cruise control @ 60mph with 1500kgs of caravan behind it on a flat road. Of course I spoil that by braking, going up and down hills, accelerating and all the other things you do in real world driving. The only thing you can rely on with a cars on board computer is if it lights up the dash, its on, anything else it tells you has to be taken with a pinch of salt 

Range Rover Sport TDV8 pulling a Buccaneer Caravel

Solo mpg - not a lot

Towing mpg - even less than not a lot

Couldn't care less... if I did care, I'd be pulling a 2 berth Lunar with a 4 pot diesel Eurobox

When I retire and start living on pension and savings, it'll be time for a rethink and some bean counting.

Mine is similar to yours, I think, and I couldn't care less either. I am retired too. In over 50 years of towing I've never worked it out!

I once worked with a guy who drove a Saab and knew his fuel consumption to 3 decimal places.

I'm another that just fills up with fuel as and when needed and have no idea of what the cars solo or towing consumption  is other than what the lying thing on the dash display tells me 

I have had a lot of cars over the years all circa 3 litre but the worst was Jag X type 4WD. That did about 14 mpg in town going back and forth to work & just over 20 on a run. Didn't have a caravan then so can't comment about towing. Only kept it for a year and PX'd for a Lexus.