EPA MPG vs real world MPG clarified
03-31-2015, 11:51 PM
#191
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These numbers aren't calculated by actually driving the truck around a track or on the road. There would be too many variables to have repeatable results that would have a uniform procedure for all cars.
07-16-2015, 09:07 AM
#193
Senior Member
You know I looked at my mileage computer yesterday and it is 17.4. I have just over 20,500 miles and I have filled my gas tank maybe four times this year. I really don't drive enough to be all that concerned about mileage. for me I realize I would likely have been better off to have gotten the 5.0. It would have been smarter.
But hey this EB can take a squat and then lunge off the line like no other that I know of. Then I am all happy again. I can't see trading....at least not until the new Raptor or at least the new EB promises me more performance. I would like better mileage especially as it relates to range. For now I'm happy with my 2012 EB,
But hey this EB can take a squat and then lunge off the line like no other that I know of. Then I am all happy again. I can't see trading....at least not until the new Raptor or at least the new EB promises me more performance. I would like better mileage especially as it relates to range. For now I'm happy with my 2012 EB,
07-30-2015, 09:13 AM
#194
Senior Member
Just worked out my last tank of gas ( I work out every one by hand). I've got a 2012 Supercab 3.7 with the 3.73 rear end. I was driving it easy, with about 80% highway driving at 105KMH (65MPH), with some of that stop and go, and the other 20% city driving with light traffic. I got 22.1MPG. Not too bad considering that it's rated at 23MPG with all highway driving.
07-30-2015, 03:07 PM
#195
I have a 2.7 liter i went on a trip set the cruise at 120 k and my average was 11.2 liter per 100k in town mix driving 13 to 14 k i guess its normal what your guys think
08-02-2015, 12:29 PM
#196
My 2014 5.0 was very bad until getting broken in. Had it one year and now at 6k miles it is about where it should be for city. Combo of winter and winter blend gas didn't help my mpg during that time. Now I get 13-14 mpg for my 4.5 mile one way commute to work so not bad. And my truck has always like freeway and gets about 20- maybe 21 mpg now.
08-02-2015, 07:43 PM
#197
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Every day on this site I see countless posts by users complaining that the gas mileage their trucks are getting isn't matching what the window sticker rating stated the truck would get. There is also a lot of speculation about how the EPA tests, but I have heard only a few posts that actually convey the true testing procedure. I think a lot of the confusion surrounding the ratings is rooted in the lack of understanding regarding the testing procedures that the EPA mandates. These numbers aren't calculated by actually driving the truck around a track or on the road. There would be too many variables to have repeatable results that would have a uniform procedure for all cars.
The EPA gas mileage numbers are calculated through the following procedure by each individual company and randomly verified by the EPA:
Vehicles are driven on a dynamometer in a controlled laboratory setting (in order to eliminate weather and road variables). Both city and highway driving are simulated.
The city test is a 7.5 mile trip lasting 23 minutes with 18 stops, at an average of about 20mph. About 4 minutes are spent idling (as at a traffic light), and a short freeway segment is included. The vehicle begins the test after being parked overnight at about 72˚F.
The highway test is a 10 mile trip with an average speed of about 48mph. The test is initiated with a warm engine (following the city test), and is conducted with no stops and very little idling.
In 2008, the EPA also added three new tests. these included:
1) A high speed test (still only averaging 48.37 mph but now including a few short spans reaching 80mph.
2) an air conditioning test, where the ambient temperature around the vehicle is increased, the AC is turned on, and the vehicle averages 21.2mph.
3) A cold temperature test, where the vehicle is cold started in a lab that is 20˚F and driven an average of 21.2 mph.
graphs of each test can be located here
In the real world, one needs to factor in weight changes based on packages, wind, road surface, tires, gears, aerodynamics of different packages... the list goes on. All of these things change depending on the vehicle configuration you buy or the environment you drive in. It would be impossible for ford or any other company to test each package and give results accordingly (if you've used ford's online builder you know just how many combinations there are). Ultimately, the testing procedures should probably change to reflect a more realistic view of driving (mainly speed) but for now, I would just like to hopefully clear up how the results are actually obtained. Please feel free to add anything else you know as I am not the end all source on this subject! Hopefully this post will be informative to people and help to clear up some of the debate. In the end, people need to understand that the results from the EPA are not a guaranteed rating for real world driving and that it is unrealistic to expect to obtain them on a daily basis. Instead just go out and enjoy your awesome trucks and stop complaining about the numbers!
The EPA gas mileage numbers are calculated through the following procedure by each individual company and randomly verified by the EPA:
Vehicles are driven on a dynamometer in a controlled laboratory setting (in order to eliminate weather and road variables). Both city and highway driving are simulated.
The city test is a 7.5 mile trip lasting 23 minutes with 18 stops, at an average of about 20mph. About 4 minutes are spent idling (as at a traffic light), and a short freeway segment is included. The vehicle begins the test after being parked overnight at about 72˚F.
The highway test is a 10 mile trip with an average speed of about 48mph. The test is initiated with a warm engine (following the city test), and is conducted with no stops and very little idling.
In 2008, the EPA also added three new tests. these included:
1) A high speed test (still only averaging 48.37 mph but now including a few short spans reaching 80mph.
2) an air conditioning test, where the ambient temperature around the vehicle is increased, the AC is turned on, and the vehicle averages 21.2mph.
3) A cold temperature test, where the vehicle is cold started in a lab that is 20˚F and driven an average of 21.2 mph.
graphs of each test can be located here
In the real world, one needs to factor in weight changes based on packages, wind, road surface, tires, gears, aerodynamics of different packages... the list goes on. All of these things change depending on the vehicle configuration you buy or the environment you drive in. It would be impossible for ford or any other company to test each package and give results accordingly (if you've used ford's online builder you know just how many combinations there are). Ultimately, the testing procedures should probably change to reflect a more realistic view of driving (mainly speed) but for now, I would just like to hopefully clear up how the results are actually obtained. Please feel free to add anything else you know as I am not the end all source on this subject! Hopefully this post will be informative to people and help to clear up some of the debate. In the end, people need to understand that the results from the EPA are not a guaranteed rating for real world driving and that it is unrealistic to expect to obtain them on a daily basis. Instead just go out and enjoy your awesome trucks and stop complaining about the numbers!
08-07-2015, 11:07 AM
#198
Junior Member
I am curious.. Am I the only one that doesn't care about MPG in a truck? I am happy with what mine gets, but have never looked at the MPG as a buying factor. just to add this I get between 14.5 and 14.9mpg and it doesn't matter if I am on back roads, Highways or short trips...
08-08-2015, 08:54 AM
#199
Senior Member
No it's not a great concern to me, range is way more important when you see "Next gas 198 miles" signs like you do leaving Lakeview Oregon heading toward Winnemucca. Oh there are gas pumps out there, but sporadically usable. As long as my fuel capacity and mileage give me a comfortable margin I am okay.
10-02-2015, 12:55 PM
#200
The car companies know how the test will be conducted and have most likely engineered the EcoBoost engines so the engines don't go into boost (or rarely go into boost) during the test. On a flat surface at a constant speed no boost is needed...the thing will sip gas. If that is the parameters of the test, the engine would rarely if ever boost the intake charge....just a guess :-)
