How are the mpg figures calculated that the car manufacturers use in the data sheets?
2006-10-01 02:26:29 · 5 answers · asked by dennis g 1 in Cars & Transportation ➔ Other - Cars & Transportation
They do not drive cars around and work out an average. They have the engine on a "running rig" where they "simulate" different conditions e.g. Urban, Extra Urban, Combined thats why they are usually not very acurate. (this is in Europe, I dont know about other places)
2006-10-01 02:46:12 · answer #1 · answered by the_angel_and_the_vampire 3 · 1⤊ 0⤋
I haven't researched this but I would guess that they do actually drive the vehicle, using a specialist driver who drives as economically as possible therefore producing the best figures. Whether this is done in a real world situation or using some sort of 'test area', I don't know.
2006-10-01 02:36:39 · answer #2 · answered by Ben G 1 · 0⤊ 0⤋
All new car models and their engines are tested over long periods of time to give mpg .
2006-10-01 02:34:38 · answer #3 · answered by Billythedog 2 · 0⤊ 0⤋
I believe that they take multiple cars of the same make and model...then just drive them around and take the average of the test results from different areas.
2006-10-01 02:35:41 · answer #4 · answered by Kj 3 · 0⤊ 0⤋
Apparently there are EPA testing rules for how this is measured. See http://www.epa.gov/fueleconomy/data.htm
2006-10-01 02:44:48 · answer #5 · answered by rscanner 6 · 0⤊ 0⤋