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Car Questions!
Gyava 
11763 cr points
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M / West Point (USMA)
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Posted 3/21/13
Hm.. Since there aren't many topics for cars, I'll ask a few questions.

First, would it cause more gas to be used if just the front two windows of a car were down, or if all four, front and back were down?

Secondly, what is, in your opinion for the average car, the best mph/speed for the best fuel-economy/economical use of gas?

Thirdly, what RPM do you think is safest for the average car to stay under?

I know that these answers, especially the last two, depend on what type of car you have, but I'm just asking in general.
13350 cr points
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26 / M / United States
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Posted 3/21/13
1. windows being down does practically nothing to your mpg.

2.depends on what kind of car your looking at, but you probably want at least 20mpg highway or you'll be spending a lot on gas.

3. anything below the redzone on your rpm meter to prevent damage, but if your trying to save money on gas then try to stay below 3k.
29442 cr points
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27 / M / Cali
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Posted 5/24/13
As was stated above, I don't believe having the windows up or down will make a significance for your mpg. Secondly, as for mph to mpg part, it'll all depend on the car and how heavy your right foot is...heheheheheheh. But seriously, I would say around 70-75 mph would be ideal. However, I tend to have a heavy right foot so....=) Lastly, around 3-4k rpms would probably offer the safest to stay under. This would also depend whether your car's a stick shift or auto, since autos tend to use up more gas.
Sailor Candy Moderator
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25
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Posted 11/28/13
Closed due to inactivity. Its been over 6 months and no new posts. Locked.
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