Fuel Consumption

[Maurice_707665]

Can anyone answer tis question for me please:- What are the relative fuel consumptions for towing at our limit on motorways and on A roads?

Maurice.

 

[Merve_5103671]

Maurice,

Don't understand the question! If you are burning reclaimed veg oil as I do- NOT A LOT! www.dieselveg.com!

 

[RogerL]

Fuel consumption, expressed as gals/mile or litres/100km, is roughly proportional to the square of the speed.

Cruising at 60mph will give an mpg figure of about 70% of the value cruising at 50 - for example 21mpg at 60, 30mpg at 50.

Your overall consumption wouldn't see such a marked difference as the increased consumption during acceleration would apply to both types of road giving closer overall figures.

 

[rob_jax]

Hopefully more apparent on single carriageway A-Roads, don't forget the extra fuel used to accelerate away from traffic lights, roundabouts and general stop-start driving.

Planning the route to include as much free-flowing or constant speed roads makes just as much difference as driving at either 50 or 60.

Robert