MPG Observations
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5 Year Member
Joined: Sep 2016
Posts: 741
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From: Ontario, Canada
MPG Observations
It was very interesting to see how weather and terrain affect MPG today.
We drove from Ontario to Savannah Georgia (on our way to Orlando,FL). My first tank of fuel (top tier) I made it from Niagara Falls to Wytheville,VA. I averaged 12.9L/100km or 18.23MPG
I filled up at Pilot or Flying J I can't remember in Wytheville, reset the trip computer and when I arrived in Savannah, GA, I had averaged 10.5L/100KM or 22.4MPG.
I am assuming that the fuel in Wytheville is still winter blend, but shortly after we left the temps just kept rising and rising.
I actually drove faster from Wytheville to Savannah, some of those interstates really move...like 75-80MPH! You make good time that way!
My guess is the colder temps, plus the mountains really killled my MPG on the first leg of the trip.
We drove from Ontario to Savannah Georgia (on our way to Orlando,FL). My first tank of fuel (top tier) I made it from Niagara Falls to Wytheville,VA. I averaged 12.9L/100km or 18.23MPG
I filled up at Pilot or Flying J I can't remember in Wytheville, reset the trip computer and when I arrived in Savannah, GA, I had averaged 10.5L/100KM or 22.4MPG.
I am assuming that the fuel in Wytheville is still winter blend, but shortly after we left the temps just kept rising and rising.
I actually drove faster from Wytheville to Savannah, some of those interstates really move...like 75-80MPH! You make good time that way!
My guess is the colder temps, plus the mountains really killled my MPG on the first leg of the trip.
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Joined: Jun 2017
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I’ve noticed that my truck doesn’t like the cold temps for better mpg...then compound it with winter gas...and I can see the difference.
Also, I’d like to give you major props for converting your fuel consumption to mpg for us further south of Canada. I, for one, don’t quite get the liters per kilometer. Thanks for making it easy!
Also, I’d like to give you major props for converting your fuel consumption to mpg for us further south of Canada. I, for one, don’t quite get the liters per kilometer. Thanks for making it easy!
Senior Member
Joined: Feb 2018
Posts: 3,966
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From: SE Wisconsin
Have noticed a few things with my 2017 2wd 2.7 and 3.73 gear. In cold weather it takes a long time for the transmission to get to temp past 130, during that period the MPG is around 16, after that it gets back to 20. The motor temp comes up fast just the trans temp is slow. Another is i get very slight but noticed better instant MPG by keeping the RPM's near 2000. Meaning I use 5th mostly below 60 MPH. I have also noted a more constant vacuum near 2000 than 1600 in 6th. Probably the oddities of my particular combination. I run a canned tune from BCB, Highlander, and find no difference from stock on long drives. KM
Senior Member
Joined: Jul 2018
Posts: 174
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From: Columbus, OH
I have noticed the same with my 2017 3.5EB. In the summer when I first bought it, I averaged 23.5 on a trip up to Michigan from Ohio and back. Over the summer same numbers. Once winter hit, its down around 18 for the lie-o-meter.
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Joined: Nov 2016
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Cold wx has a significant fuel economy impact.
Cold weather and winter driving conditions can reduce your fuel economy significantly. Fuel economy tests show that, in short-trip city driving, a conventional gasoline car's gas mileage is about 12% lower at 20°F than it would be at 77°F. It can drop as much as 22% for very short trips (3 to 4 miles).
https://www.fueleconomy.gov/feg/coldweather.shtm
Cold weather and winter driving conditions can reduce your fuel economy significantly. Fuel economy tests show that, in short-trip city driving, a conventional gasoline car's gas mileage is about 12% lower at 20°F than it would be at 77°F. It can drop as much as 22% for very short trips (3 to 4 miles).
Fuel Economy in Cold Weather
https://www.fueleconomy.gov/feg/coldweather.shtm
5 Year Member
Joined: Feb 2019
Posts: 697
Likes: 185
From: Saskatchewan
Cold wx has a significant fuel economy impact.
Cold weather and winter driving conditions can reduce your fuel economy significantly. Fuel economy tests show that, in short-trip city driving, a conventional gasoline car's gas mileage is about 12% lower at 20°F than it would be at 77°F. It can drop as much as 22% for very short trips (3 to 4 miles).
https://www.fueleconomy.gov/feg/coldweather.shtm
Cold weather and winter driving conditions can reduce your fuel economy significantly. Fuel economy tests show that, in short-trip city driving, a conventional gasoline car's gas mileage is about 12% lower at 20°F than it would be at 77°F. It can drop as much as 22% for very short trips (3 to 4 miles).
Fuel Economy in Cold Weather
https://www.fueleconomy.gov/feg/coldweather.shtm
try -40 weather.
Sitting at 20l per hundred kms
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Senior Member
Joined: Feb 2018
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From: SE Wisconsin
Tried it at -27F, -33C just 2 weeks ago, man is the steering stiff then! Worried more about something else freezing than the MPG, it did take a long time to get above 13 MPG! KM
Last edited by 2017bluetruck; Feb 22, 2019 at 01:10 PM.