Originally Posted by
Yas89
Hey guys, got an interesting question. What is better for mpg, and by how much would you say?: driving for 90 minutes at 75 mph, or driving for 80 minutes at say 85 mph?
if you think along the lines of i'm running out of fuel so i'll boot it at 100mph to the petrol station you are going to run out sooner.
my dad found from his 2l tdci mondo that about 55-60mph was best and he got over 60mpg but i think thats due to it having 6 gears. the focus isnt as good, i know my mum's got a 1.8 tdci focus mk1.5