Gas prices - the real reason

[RedArmy]

lolz, adiabatic.

/so off topic

 

[Eli]

False; Automobiles get better gas mileage during warm weather and on summer blend gasoline.

Originally posted by: spidey07

So why do I have more power and better Mileage in the cooler months?

More power, yes. More milage, no.

Remember that more power automatically means that more fuel is being burned. Whether this saves you fuel or not depends entirely on how you drive, and the automobile in question. Without changing gearing or significantly altering the way you drive, you will not see improved MPG by increasing any given cars' power, it will go down.

When you add in winter blend gasoline, which physically contains less energy per gallon, along with the fact that your engine has to stay in closed loop mode longer, you see a pretty significant reduction in overall MPG during the winter months.

 

[Zenmervolt]

Originally posted by: spidey07
So why do I have more power and better Mileage in the cooler months?

More power, yes. Better mileage? Check your math skills because you're calculating wrong.

Cold weather means more power because you can burn more fuel. In cold weather the air has a greater amount of oxygen per unit volume (and the engine pumps a unit volume of air). The extra oxygen is compensated for by injecting more fuel which causes worse mileage but more power.

Additionally, anti-freeze compounds added to fuel in the winter reduce the energy content of gasoline, which is again compensated for by the injection og extra fuel into the cylinders, once again making the mileage worse.

The ONLY reason you might get worse mileage in the summer is that you use the A/C or drive with the windows down. Neither of which is directly related to the temperature.

ZV

 

[Rogodin2]

I can't be the only one to think of this. It has nothing to do with "more travel" which is certainly another factor.

Why are you such a fool spidey?

Rogo

 

[Eli]

 

[dmcowen674]

Originally posted by: Zenmervolt

Originally posted by: spidey07

Check your math skills because you're calculating wrong.

Hehehehehehe :laugh:

 

[patentman]

Cars get better mioleage in warmer weather and on the summer blend of fuel. This is true for hybrids as well.

Gas costs more in the summer because a) people drive more; and b) the summer blend is a bit more expensive to produce.

Gas prices are driven by demand and specualtion. More people on the road = gas prices go up; one ofc the imams in Iraq or Iran farts... gas prices go up... You get the idea.

 

[HardcoreRobot]

does there have to be a reason?

 

[teckmaster]

I used to think that winter was better but I'm not sure anymore. I drove from Tucson Az to Pennsylvania last August and averaged about 33mpg which is much more than I have ever got in the car prior to that.

 

[desy]

I live in Canada
mileage is always worse in winter
once you do get the engine warm all the other systems have more work to do in the cold as the lubricants bearings and on and on all have to overcome the chill
If the air is more dense in the cold wouldn't the car have to also overcome more wind resistance?