Originally Posted by
Daniel Wood
No, because they don't test them in real life conditions, it's all done in a test lab with no resistance and at lower speeds.
Think the goverment are supossed to be on at the manufactors to change it, but it will still be wrong.
Dan
Originally Posted by
Daniel Wood
so you've read an article that clearly states that they use a rolling road, but still say it's done without any resistance?
Originally Posted by
MadMac
Nonsense, used to live with a fella who worked for Roush when they were developing the Sport Ka, he had it for about 2 months road testing it to calibrate the ECU maps and get fuel efficiency figures.
the figures gained on the road will not be accurate enough to quote for any useful purpose.
as the linked article above states, they have to be done in a climatic test cell with a rolling road (with a representative combined wind and road resistance) with very accurate fuel consumption measurement equipment from the likes of AVL. trust me, i've been there and done that.