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Saving on Fuel
52 cr points
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27 / M / Anywhere in the w...
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Posted 12/28/08 , edited 12/28/08
Not sure what you do with hobos but you'd have to do more than hold hands to get infected, I can assure you.

Besides, the person didn't exactly ask 'how to save gas while driving my car'. And the best way to save gas I can think of that wouldn't involve too much physical activity would be to take a bus.
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Posted 12/28/08
idling is bad for your engine. And it uses gas while going nowhere so your mpg goes down.

contrary to what ive been reading so far, driving slower than the speed limit does not necessarily mean you better gas mileage. Driving 10mph isnt gona make your gas last as long as if you went 65mph. Its a bell curve type effect in other words. There is a range where your car gets the best gas mileage, and the longer you keep your car at that speed in that gear the better off you are.


Think of this in terms of volumetric efficiency. Your car is at its most efficient when the rpm range is about 1/2 of the engine at max rpm. Since I suck at explaining I'll just use an example. My car maxes out at 6200 rpm. The highest volumetric efficient rpm therefore is roughly half, or 3100 rpm. If my car maxes out at 8000, then around 4000rpm is still okay. The actual amount is a little less than the projected values, so it is slightly less thn 1/2.
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25 / Where I am is whe...
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Posted 12/28/08
My car likes 55 mph.
Problem is, I can't always drive at that speed. People will honk at me.
59 cr points
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23 / M / SoCal
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Posted 1/2/09
1. Coasting
2. Low rolling resistance tires (only after you've worn out the gumballs you got now or you'll be outta cash)
3.Weight reduction
4. If you can get it done cheap (i mean REALLLYYYYYYY cheap) then turbo your motor, turbocharging increases the volumetric efficiency of your motor
5. shift at 2500 rpm
6. When driving above 40 MPH , roll up your windows and turn on the AC if you want because above 40 MPH
it is more fuel efficient to be driving with windows rolled up and AC on then it would be to drive with windows down due to wind resistance, consequently the converse is true
7. I can't think of anything else that hasn't been said already
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26 / M / SoCal
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Posted 1/2/09

xViETameri wrote:

1. Coasting
2. Low rolling resistance tires (only after you've worn out the gumballs you got now or you'll be outta cash)
3.Weight reduction
4. If you can get it done cheap (i mean REALLLYYYYYYY cheap) then turbo your motor, turbocharging increases the volumetric efficiency of your motor
5. shift at 2500 rpm
6. When driving above 40 MPH , roll up your windows and turn on the AC if you want because above 40 MPH
it is more fuel efficient to be driving with windows rolled up and AC on then it would be to drive with windows down due to wind resistance, consequently the converse is true
7. I can't think of anything else that hasn't been said already


its better with fan. also put your car on circulate cabin air, tends to be cooler that way. But its winter time so blast that heater all you want helps cool your engine if anything haha
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30 / M / CA
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Posted 1/3/09

xViETameri wrote:

6. When driving above 40 MPH , roll up your windows and turn on the AC if you want because above 40 MPH
it is more fuel efficient to be driving with windows rolled up and AC on then it would be to drive with windows down due to wind resistance, consequently the converse is true


Mythbusters busted that, it's not a big difference but it was slightly better with windows rolled up.

Some factors I didn't like about their test, they were driving some big SUV with the wind resistance of a brick, and the car driving with the AC on had it on full blast to the point where the cameraman was freezing his ass off wearing shorts. I don't know what the results would've been if it was set on low or a more comfortable temperature with climate control in the car.

So maybe they didn't really... Maybe if you had a more aerodynamic car and only kept the AC on low.

392 cr points
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46 / M / Makati, Philippines
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Posted 1/3/09
steamed engine car that burns waste and has a machine that converts Carbon dioxide in to oxygen
and other waste gases like methane, nitrogen etc. will be separated and be stored except gases that has benefits to the environment like nitrogen etc. will be release to the air.
very fictional i say
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