Car M.P.G. towing trailer

2008 Ford Fiesta Zetec-S, 1.6L petrol
Towing: early 90's Designer

So far towing I have averaged 36-37 mpg!
Normally without towing I average 40-42 mpg, which is driving extremely economically! So my towing mpg isn't too bad!

2012 Honda Civic 2.2 i-dtec 47.6mpg towing Dandy Designer. We were really pleased with that the Jazz only ever managed 35-36.

Looking.at.the.posts.re.mpg.it.would.seem.that.a.vehicle.with.an.engine.of.around.1.9+turbo.
if.diesel.gives.an.acceptable.towing.figure...Whilst.smaller.engined.or.under.powered.cars.
have.to.work.harder.to.tow.your.trailer.and.struggle.to.get.much.above.35mpg.
On.our.recent.trip.to.cornwall.our.Pickup.managed.31mpg.towing.which.is.pretty.much.
what.i.get.without.the.trailer.

..... I wouldn't consider 55mpg from a 1.4 diesel "struggling"' especially considering it was towing and loaded to the gunnels.

Towing a 70's or 80's (not sure how old) Dandy 4 loaded up with extras like a fridge and a carpet for the awning, we get around 18mpg with a 50's Land Rover. Towing with a Chrysler 300C, we get mid thirties... exactly the same as we get when not towing the Dandy.  

The Land Rover likes to cruise at 48 mph so keeping to the towing speed limit is not hard. Unfortunately, the same can't be said for the Chrysler. I use the cruise control whenever I can. With both cars, it's easy to forget that the Dandy is there.

We also have a 1.7 diesel Kia Sportage but haven't towed the Dandy with that yet as we tend to use the Chrysler for long distance trips. We have used for it towing a one ton trailer (fully loaded) several times and it does knock a few miles off the 47-50mpg norm, particularly if the route is hilly. You need to use the gearbox a bit more when towing a ton too. Handling wise, you wouldn't know the trailer was there.

Your Dandy will be 70's ..... it's orange