4.0's usually do poor in winter??????

[94EXPLODER]

i dont use 4x4 right now...as my hubs are shot its all town driving also....i changed the thermostat last winter and the EGR is toast...havent gotten around to fixing that....so im basically driving around 2wd with 31s...i also let it warm up for 5-10 min before i drive it....i remember it doin poor last winter but this winter seems worse....i just broke 157k also....

 

[97ranger4x4]

well remember that letting it idle for 5-10 minutes you are just burning gas and not going anywhere, that means you are getting 0 mpg. I would let it run for a minute or 2 and then start driving it slowly to warm up. how far are you driving? I mean if you only go a couple of miles your screwed because your truck will never burn off all of the condinsation especially being that cold. But driving your truck is the best way to warm it up!

 

[94EXPLODER]

i drive it any where from a mile to work or 12 miles into school...

 

[gw33gp]

BTW, "winter mix" fuel contains a disproportionate ammount of butane.

How do they get a gas (butane) to blend with gasoline. Is is soluble in gasoline? It seems that it would easily boil off.

 

[AllanD]

In a bucket at <0.5degC you can carry butane around in a bucket.

In gasoline it's kinda like the Carbon Dioxide in Coca-Cola

Being a simple hydrocarbon it's very "soluble" in solutions of other hydrocarbons.

as a practical matter dissolving it in gasoline raises it's effective boling point.

But like Carbon Dioxide in Coca-Cola it is more soluble in cold liquid than warm liquid.

so the cooler the weather the better it "Stays put"

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[Randy960]

I know how you feel when it comes to lower mpg in the cold, I went from around 17-20 with mixed driving, down to 13-14. I deliver pizza, so its common for me to drive a couple miles, then wait a half hour or so before i start again, so when its this cold out (9 degrees F right now, wind chill of -14), almost every start is a cold start. From my experience with fuel injection (thanks to megasquirt and my escort project), I know that the computer will tell the injectors to inject up to 140% more gas than normal (Warm-Up Enrichment-WUE) which slowly decreases until the engine is at operating temperature.

I think I'm going to make a radiator blanket for when its this cold.

 

[93ranger420]

the only way its gonna get less is if your spinning all the time in 2wd or driving all over in 4x4, other then that the cold air wont effect gas mileage at all whatsoever, its actually hot air that messes stuff up.