#324: “A car operates at maximum economy, gas-wise, at speeds between 25 and 35 miles per hour. A car that shifts manually gets 2 miles more per gallon of gas than a car with automatic shift. A car uses 1.6 ounces of gas idling for one minute. Half an ounce is used to start the average automobile.”
Too general. True. Can vary. False.
This is actually a complicated factoid. HowStuffWorks says that in general, lighter vehicles have their fuel efficiency at higher speeds, while heavier vehicles have it at lower speeds. For most cars, the maximum economy is at between 40 and 60 mph.
Manual transmissions do get more miles per gallon than automatic transmissions.
Cars actually use way less gas idling for one minute. They use 0.026 gallons while idling for ten minutes, and that’s less than the number given here. Another estimate I saw was the amount of gas your car needs to go one mile, which varies by the mileage your car gets.
It takes roughly half a teaspoon of gas to start a car, but it varies depending on the number of cylinders. That’s about a sixth of an ounce.
And that’s it for the category Energy! Tune in since it’ll be in the next volume.