Toyota Nation Forum banner

1 - 9 of 9 Posts

·
REV
Joined
·
88 Posts
Discussion Starter #1
this 2019 xse is the first true car that I care for mpg wise and the first v6 I've own.

I got it back in July and since then I've been getting 24 to 25mpg per gas tank. i live in Chicago and so winter is starting, the last few weeks I've been getting 21 or 22mpg. logically I am using the heat more and I start my car to warm. up for 5 minutes every morning and at night when I leave for work. does that sound right that the car is using up that much gas for the winter? share your experiences please
 

·
Registered
Joined
·
2,916 Posts
The EPA and some states have mandates that require that different gas formulations be used in the winter to help reduce pollution in urban areas. These winter formulations almost always yield poorer fuel mileage than the summer formulations, or formulations used in rural areas.

The fact that you warm up your car for 5 minutes before driving obviously also contributes to poorer fuel mileage.
 

·
Registered
Joined
·
554 Posts
The EPA and some states have mandates that require that different gas formulations be used in the winter to help reduce pollution in urban areas. These winter formulations almost always yield poorer fuel mileage than the summer formulations, or formulations used in rural areas.

The fact that you warm up your car for 5 minutes before driving obviously also contributes to poorer fuel mileage.
Definitely This!
And the fact you occasionally spin the wheels on icy roads. And the fact that overall average speed is lower in winter due to heavier trafic. And because of the winter tires which are less mpg efficient. It all adds up to lower winter efficiency for any ICE or EV vehicle.
 

·
Registered
Joined
·
25 Posts
Check your air pressure in your tires as well. The reduced temps also lower the air pressure which can affect mileage.
 

·
Registered
Joined
·
138 Posts
You don’t really need to “warm them up” anymore either. Thinner oils these days do their thing nearly as well as they do when hot. Cars warm up far faster than the old dinosaurs I used to drive too. All you have to do is just let it settle down for a few seconds and drive off gently . The only thing that suffers from not warming it up really is your back side. That’s why it’s heated seats from now on for me


Sent from my iPad using Tapatalk
 

·
Registered
Joined
·
2,916 Posts
All cars use more gas in the cold. Always has. https://www.fueleconomy.gov/feg/coldweather.shtml
Here is the complete list from that site (many of which have already been mentioned):

Cold weather affects your vehicle in more ways than you might expect:
  • 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.
 
1 - 9 of 9 Posts
Top