Slower driving can save motorists £500 a year

BenL

Another thing learnt this morning on the radio. I had wondered but someone else has figured it out.

Upto 40mph use open windows for cooling

Over 40mph use Air Conditioning as its more efficient using than the extra drag placed on the car by having open windows.

Conor_3

I travelled from Driffield, East Yorks to Grangemouth and back keeping to the legal limits and managed to return 60.3MPG out of my 2L Mondeo TDCi which is 3-5MPG more than usual however I did manage to find the opportunity to use 6th gear which I normally don't. Driving slower (came back via A1 whereas on the way up I used the M74) at 60MPH instead of 70MPH made no noticable difference.

Tozer

BenL wrote: »

I read somewhere about not letting your car rev above 2000 rpm when accelerating is good for economy (less revs makes sense).

This is quite hard to do, most of the time i'm not out of a junction and have to change gear from 1st and this policy is shot when i am in 5th as its 43 mph.

It will totally depend upon the car. You will labour the engine if you are in the wrong gear and the revs are really low which could cause damage....and will use a lot more fuel.

Car manufacturers tend to fix the engine management systems at between 50 and 60mph for max fuel efficiency. Hence the best economy mpg is usually quoted at 56mph (100kph).

Poppycat

I have heard you can get you engine management system in the car altered for speed or economy

Tozer

Poppycat wrote: »

I have heard you can get you engine management system in the car altered for speed or economy

True. But you will probably invalidate the warranty.