I'm interested in saving at the Pump., If I drive slow I spend more time on the roade which means I burn more Gas. So if I drive faster I spend lest time on the road, but burn more gas for a shorter amount of time. Then the slower I go I burn less Gas but for a longer amount of time. So now which is it that I would be saving Gas or Time?
2006-07-12 00:48:48 · 3 answers · asked by dave091125 2 in Cars & Transportation ➔ Other - Cars & Transportation
I don't think it matters how long the journey takes as normally fuel consumption is rated in mpg (miles per gallon), so for example my small 4-door vw does roughly 30mpg @ 80mph but 40mpg at 60mph... so if I travel the same distance it would be more economical to go slower.
2006-07-12 00:59:06 · answer #1 · answered by jasamy31 2 · 0⤊ 0⤋
I wanted to know the answer to the same question, so I clocked myself and watched the gas mileage on a trip of about 135 miles that I take every week. Keep in mind that I was in the same car, covering the same road each week. At 57 mph, I got 28 mpg, and the trip took 2 hours and 15 minutes. At 70 mph, I got 21 mph and the trip took 2 hours. At 60 with the windows down, I got 24 mph. At 60 with the AC on, I got 24 mph. So now, whenever I have the extra time, I drive at 57-60. If it's hot, I use the AC, since it doesn't seem to affect the gas mileage any more than opening the windows does.
2006-07-12 08:52:56 · answer #2 · answered by Erika M 4 · 0⤊ 0⤋
car engines are designed to give best fuel economy at around 55 mph
more specifically the gearing is set so that 55mph occurs at the point of maximum torque
2006-07-12 07:52:47 · answer #3 · answered by Ivanhoe Fats 6 · 0⤊ 0⤋