Fuel economy tank when the weather got cold?

[lawnboy-5247]

My truck had only gone down .3 mpg from 16 to 15.7 mpg according to the dic this winter but it only does stop and go driving for most of the week so it gets bad mileage anyway. My 04 equinox is a different story in the winter I go from around 16.5 to about 13 mpg

[MMC]

Winter blend fuel contains butane.

 

http://www.atlasoil.com/Blog/Whats-the-Difference-Between-Winter-Blend-and-Summer-Blend-Gasoline

[fondupot]

My mileage has taken a hit in colder temps too. Every car I have driven got worse mileage in the winter.

[TxTruckMan]

"Winter Blend" gas is a very small player. It only has like 1-2% less energy = 0.2 - 0.4 worse mpg. The biggest reason for the drop in MPG is the cold itself.

 

• Engine and transmission friction increases in cold temperatures due to cold engine oil and other drive-line fluids.
• It takes longer for your engine to reach its most fuel-efficient temperature. This affects shorter trips more, since your car spends more of your trip at less-than-optimal temperatures.
• Heated seats, window defrosters, and heater fans use additional power.
• Warming up your vehicle before you start your trip lowers your fuel economy—idling gets 0 miles per gallon.
• Colder air is denser, increasing aerodynamic drag on your vehicle, especially at highway speeds.
• Tire pressure decreases in colder temperatures, increasing rolling resistance.
• Winter grades of gasoline can have slightly less energy per gallon than summer blends.
• Battery performance decreases in cold weather, making it harder for your alternator to keep your battery charged. This also affects the performance of the regenerative braking system on hybrids.

In severe winter weather, your mpg can drop even further.

• Icy or snow-covered roads decrease your tires' grip on the road, wasting energy.
• Safe driving speeds on slick roads can be much lower than normal, further reducing fuel economy, especially at speeds below 30 to 40 mph.
• Using four-wheel drive uses more fuel.

[fondupot]

 

"Winter Blend" gas is a very small player. It only has like 1-2% less energy = 0.2 - 0.4 worse mpg. The biggest reason for the drop in MPG is the cold itself.

 

• Engine and transmission friction increases in cold temperatures due to cold engine oil and other drive-line fluids.
• It takes longer for your engine to reach its most fuel-efficient temperature. This affects shorter trips more, since your car spends more of your trip at less-than-optimal temperatures.
• Heated seats, window defrosters, and heater fans use additional power.
• Warming up your vehicle before you start your trip lowers your fuel economy—idling gets 0 miles per gallon.
• Colder air is denser, increasing aerodynamic drag on your vehicle, especially at highway speeds.
• Tire pressure decreases in colder temperatures, increasing rolling resistance.
• Winter grades of gasoline can have slightly less energy per gallon than summer blends.
• Battery performance decreases in cold weather, making it harder for your alternator to keep your battery charged. This also affects the performance of the regenerative braking system on hybrids.

In severe winter weather, your mpg can drop even further.

• Icy or snow-covered roads decrease your tires' grip on the road, wasting energy.
• Safe driving speeds on slick roads can be much lower than normal, further reducing fuel economy, especially at speeds below 30 to 40 mph.
• Using four-wheel drive uses more fuel.

 

 

This is the best answer folks.

[ewbldavis]

We should add, his wife was driving it.

 

Even our Hyundai mileage, somehow, drops sharply with my wife's driving. I think her feet weigh more than mine

[Rock1500]

My truck is the same way. I drop like 2 mpg or so in the winter because of the change in blend and warming up the truck.

 

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