weather and gas milage?!?!

[tybardy]

Over the last few weeks I have noticed that my fuel economy has been going down. I thought I was crazy but its official, my economy is going way down all of a sudden. No difference in driving, same gas, same everything, just bad MPG's.

Can the cold weather be causing my truck to get worse mileage?

 

[Rollin Thunder]

IDK if yours does this. But when its cooler here, My truck tends to have more power. Like if its 80 out. It has less, but when its between 50 and 65, it like adds 20 hp and I get less MPG because of this.

 

[fatnlowtahoe504]

IDK if yours does this. But when its cooler here, My truck tends to have more power. Like if its 80 out. It has less, but when its between 50 and 65, it like adds 20 hp and I get less MPG because of this.

might do that because you dont have your A/C on so the compressor doesnt pull away any power from the motor

---------- Post added at 12:09 AM ---------- Previous post was at 12:07 AM ----------

Over the last few weeks I have noticed that my fuel economy has been going down. I thought I was crazy but its official, my economy is going way down all of a sudden. No difference in driving, same gas, same everything, just bad MPG's.

Can the cold weather be causing my truck to get worse mileage?

if you make short trips everywhere you might be getting worse gas mileage cus it takes longer for the engine to warm up or just in general cus when the engine is cold it burns more gas... (from what ive heard from many sources and personal experience)

 

[Rollin Thunder]

might do that because you dont have your A/C on so the compressor doesnt pull away any power from the motor

---------- Post added at 12:09 AM ---------- Previous post was at 12:07 AM ----------

na I rarly use it in the summer unless its dead hot as I usually roll with the windows down.

 

[fatnlowtahoe504]

it could also be that it doesnt have to cool off the engine as much as it does in the heat???

 

[Rollin Thunder]

E fans are stock on my 07. I guess the colder air just is like a cold air intake on steroids.

But usually cold does not effect fuel mileage much. Some cities switch to whats called a Winter blend of fuel which may bring down your mileage. Also some gas companies are putting more than 10% corn in with out telling people (atleast around here) so that may be it as well.

 

[fatnlowtahoe504]

thats true i forgot you had a 07, yea luckly around here they have on the pump that they have 10% in it

 

[Eagle]

it's the fuel blend+ warm up time + lower tire pressures.

colder weather = more power = BETTER mpg.

 

[Grocery Getter]

Over the last few weeks I have noticed that my fuel economy has been going down. I thought I was crazy but its official, my economy is going way down all of a sudden. No difference in driving, same gas, same everything, just bad MPG's.

Can the cold weather be causing my truck to get worse mileage?

Not sure buddy.... the colder it gets the better your MPG's should be. When your intake temp goes down your HP goes up yadda' yadda'..... Check your air pressure, when it's hot your tires will run hard since the air is constantly expanded(here in AZ in the summer) but as it cools off the pressure will go down so in the winter you need to add some air. Also could be something to do with the winter blend of gas, I'm on the corn so I haven't seen a difference. Have you cleaned your air filter lately?

 

[04Hoe]

Switching to winter blend sucks in the Midwest.

I have no idea if they do that in Arizona.