[Whyman]

I always tow in D and only change into S for roundabouts and tricky junctions when a quicker getaway is needed.

I select manual for long downhills but it does not seem to make much difference but may save the brakes a bit.

I averaged 29 mpg on the computer the last time I towed which is probably 26 mpg.

My old caravan was 1500kg but have just changed to a 1650kg one but have not towed it on a long journey yet.