Gas Mileage

[Hoosier Cowboy]

Anyone else getting crappy gas mileage lately?? My '14 Dodge Nitro has always sucked on gas mileage but my '15 Ram was pretty good until lately. Cheap gas?

 

[GregD]

I have had the same problem. I had using the "cheap" Marathon stations.
When back to Speedway, now no problem.

 

[KittySlayer]

My 2017 Toyota Tacoma has dropped it's MPG.

I thought the gas stations switch to a winter blend of gasoline so maybe it sucks with regards to mileage.

Are you warming your car up and it is using gas while idling?

 

[Magyars]

We were discussing the very issue two days ago...we're getting 8MPG less than normal.
Figured it's due to the winter blend

 

[bobzilla]

Winter blend. Happens every year. Got worse with the switch to ethanol several years back.

Wife’s car drops about 2-3mpg this time of year. Instead of 35/36 she’s getting 32-33. Truck dropped from 18/19 in the day to day To 17-18.

 

[Jaybird1980]

Anyone else getting crappy gas mileage lately?? My '14 Dodge Nitro has always sucked on gas mileage but my '15 Ram was pretty good until lately. Cheap gas?

Could be bad gas, does fuelling up other places have an impact on it?

The cold weather will automatically lower mpg, but that should really only be 2-3 mpg change. There are some mechanical things that can impact mileage as well though.

 

[HoughMade]

For some reason, every year about this time I get bad mileage.

 

[Hoosier Cowboy]

I figured a lot of it had to do with winter blend but this is the most drastic difference I've ever noticed.

 

[Jaybird1980]

I figured a lot of it had to do with winter blend but this is the most drastic difference I've ever noticed.

What is the difference? How many miles on vehicle?

 

[tim87tr]

Best gas mileage is in a paid for vehicle

 

[Michigan Slim]

I've noticed the same thing. Best mileage with Sunoco so far. But not much.

 

[oze]

Glad I found this thread; I thought I was going crazy. I have a 2016 Grand Cherokee with 45,000 miles, and was getting 19-20 city MPG until a month or so ago. 16 now.

 

[Leo]

I loose a couple mpg in the winter, but if the windows are frosty in the morning , I start the car and go back in the house for more coffee. When I finish the cup, the car is nice and warm. I figured that accounts for my loss.

 

[Jaybird1980]

I loose a couple mpg in the winter, but if the windows are frosty in the morning , I start the car and go back in the house for more coffee. When I finish the cup, the car is nice and warm. I figured that accounts for my loss.

Yes this is part of it. The other part is it's colder, cold air is more dense. More air means more fuel is added to maintain the proper air fuel ratios.

 

[HoughMade]

I loose a couple mpg in the winter, but if the windows are frosty in the morning , I start the car and go back in the house for more coffee. When I finish the cup, the car is nice and warm. I figured that accounts for my loss.

When it's cold, the injection runs richer to start and until the car reaches operating temp. If the incoming air remains cold, it will run a bit richer as long as it is. A few other factors as well.

Fuel Economy in Cold Weather

Cold weather can reduce your fuel economy. Our tips can help improve your gas mileage when temperatures drop.

www.fueleconomy.gov

 

[Born2vette]

When it's cold, the injection runs richer to start and until the car reaches operating temp. If the incoming air remains cold, it will run a bit richer as long as it is. A few other factors as well.

THIS^^^

I go from about 24 to 21 mpg in the cold weather. I find using quality gas helps (Kroger gas sucks in my SUV). I also use Techron every 5000 miles. Also don‘t dismiss colder weather stiffens tire compounds and causes a little more slippage. Lots of reasons for fewer mpg in cold weather.

 

[AtTheMurph]

Air is cold, wind has been very high and winter formulation of gasahol.

 

[LongRangeBushy]

Win win —- gas prices go up —mpg goes down .. can’t help but wonder who thought of that?

 

[nascarfantoo]

Guess I am lucky. My Tundra never trends outside of its 14-16 mpg window. Doesn't matter the season, how fast or slow I drive, sea level or 10,000 ft mountains. I have never seen it outside this window.

 

[Biggredchev]

Nope, GMC has been getting the same 11.5-11.6 it always has. God i miss my Ranger.