running hotter more fuel efficient?
08-12-2005, 03:31 PM
#1
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running hotter more fuel efficient?
It'* been over 100 for the last 2 days and ive noticed that in the heat while my car is running between 200 and 220, it seems to be more fuel efficientcant hat be right?
08-12-2005, 03:54 PM
#3
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Nope.
Colder air is denser and therefore more efficient. You get more air and more fuel, which gives the engine more power, then keep your foot out of it, and the engine doesn't have to work as hard.
Colder air=greater performance and efficiency.
Hotter air=better emissions.
Colder air is denser and therefore more efficient. You get more air and more fuel, which gives the engine more power, then keep your foot out of it, and the engine doesn't have to work as hard.
Colder air=greater performance and efficiency.
Hotter air=better emissions.
08-12-2005, 05:32 PM
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With the Warm weather it takes no time at all for the engine to come up to temp.... Makes for better effiency...
Just remember I have done as much as 33mpg with a 180F T-Stat, in 45*F weather
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Just remember I have done as much as 33mpg with a 180F T-Stat, in 45*F weather
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08-12-2005, 05:39 PM
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warmer air= less dense air
means less fuel in the mix.. so in theory at idle, you would use less fuel... but when you get in on it, it would need more to make power
means less fuel in the mix.. so in theory at idle, you would use less fuel... but when you get in on it, it would need more to make power
08-12-2005, 06:10 PM
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There'* alot more to it. The more power POTENTIAL the engine has, the less hard it has to work to perform X amount of work.
Warming up QUICKLY is good for efficiency, as the car is running rich by design until operating temp is reached. But operating hot at all times is not good for efficiency.
Warming up QUICKLY is good for efficiency, as the car is running rich by design until operating temp is reached. But operating hot at all times is not good for efficiency.
08-12-2005, 07:24 PM
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Oops I totally didn't think that through...thus I now look like an idiot.
More completely vaporised fuel IS better...but warm air is is not....god I feel like a tool. Must be work rubbing off on me.
More completely vaporised fuel IS better...but warm air is is not....god I feel like a tool. Must be work rubbing off on me.