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miles per gallon (MPG)
Posted 29 July 2010 - 05:40 PM
Posted 30 July 2010 - 06:37 AM
Posted 02 August 2010 - 08:16 AM
We just picked up our new to us 09 Flex FWD with 53k miles. Driving it home from the dealership on a 30 mile, relatively flat, highway with light traffic, we got 28.5 mpg cruising at 75mph (I have reset the average gauge as we got on the highway). I found that to be very impressive for such a large vehicle.
Once we got off the highway and drove it around the town for a few days, that average dropped to 20mpg, but still, not bad. Next, I will compare it to the actual numbers from filling it up.
Posted 02 August 2010 - 10:42 AM
Posted 03 August 2010 - 09:21 AM
Keep in mind, you are driving a BRICK. If you exceed 65 MPH you will get horrible MPG. You are trying to push 4600 pounds down the road with a lot of wind resistance. If you aren't practicing the egg between the foot and pedal, then you will also see horrible MPG. Currently with the AWD Ecoboost I am seeing roughly 19 MPG on the dash, but my last two hand calculations came out at 17.1 and 16.8. The dash readout is about as accurate as a koolaid thermometer.
I drove a hybrid for about 3 years, so I can use the techniques I learned driving the Prius to get good fuel efficiency from the Flex, but the urge to pass and play come up often enough to hurt the mileage. If I can resist the urge through at least one tank, I can see what egg driving can get in these. I knew going into it that the MPG would not be great, it is a slab sided blunt nosed brick that applies power to all 4 wheels, so it will not get good MPG, but gets better than the AWD Explorer I had could ever get going downhill in a tail wind.
To get good MPG, driving style is everything. Light touches on the pedal, coasting to traffic stops, resisting the urge to tailgate and pass, maintaining a steady speed with minimal pedal use will get the best fuel economy. Something to try would be to air up the tires a bit higher than the stated pressure on the door, it is a trick we used in the Prius to get better than EPA. The downside of that is the center wears a bit more, and you has slightly less traction. Changing tires to ones with less rolling resistance also helps. Running Mobil 1 oil has also helped with the MPG, at least in the Veracruz and Fusion, my Flex has only 1600 miles on it, too early to change the factory fill out yet. I saw about a 1.3 MPG increase using Mobil 1. Alignment also plays a big part in how much gas is used, too much toe in/out causes tire scrubbing and hurts the rolling resistance big time. If they haven't done so, have them check the alignment, and tire wear. Toe in/out usually doesn't affect travel too much like camber/caster will, and .5* is enough to affect mileage.
The 4 biggies to poor mileage, improper tire pressures, improper alignment, wind resistance, and heavy foot. 3 out of 4 can be resolved, wind resistance can't, so drive it with the thought of pushing a brick through the air may help. Bricks don't fly without a lot of help.
Good points listed, but please note that the CoD of the Flex is actually pretty good:
Drag Coefficient .36 drag coefficient (it is actually .355, according to Ford)
This compared to other cars is surprisingly good, especially compared to sedans I thought were better:
Just a note. Once we get out 2010 through it's first full tank, I will be reporting. I drive this car like a Gran Touring car, so slow acceleration and drive at 55-65 on the highway. This is not supposed to be a quick scooter, and it is a 4600+ lb car used to transport people in comfort. No quick starts, and also no hypermiling. We are going on a long trip in September, so I expect some good numbers from that (mid-20s). Furthermore, we use this like a `mommy car`, and it has been great so far.
The only want I have of cars like this is a diesel engine, no losing fuel on idle, and general torque efficiency.
Posted 15 September 2010 - 05:52 PM
Posted 17 June 2011 - 12:34 PM
- tmclean122 likes this
Posted 08 August 2012 - 07:02 PM
Posted 09 August 2012 - 03:26 AM
So far my overall average is 19.9 mpg, with the worst tank being 18.0, and the best tank being 21.3 No real long highway trips yet so see how much I can squeeze out of it on a long flat highway. We live in the Smokey Mountains here so there is no such thing as a flat or straight piece of road. Hopefully on a nice long flat road trip I'll be able to squeeze out 24, once it get loosened up.
I've never used the onboard fuel mileage computer, they seem innacurate to me. I prefer to track it more accurately on my special spread sheet.
Posted 09 August 2012 - 08:11 AM
Posted 15 August 2012 - 02:28 PM
I am satisfied with the mileage, since I knew I was buying a brick, and it does move along nicely when I want it to. I usually drive pretty gently, though.
Posted 29 April 2015 - 09:27 AM
Around town, our 2012 non-ecoboost gets 19.3mpg. On interstate hiway trips from Atlanta to Memphis, we'll average 21-22mpg. Hiway mpg is greatly influenced by speed. I typiccally drive around 76-78 mph, and could probably up my mpg if I'd slow down a little. ymmv
Posted 01 May 2015 - 05:07 PM
So far (1700 Miles on 14 LTD EB AWD) is 16.6MPG with almost no highway driving and my cast iron foot. The OBC says 16.8MPG...its not far off. Idle time on cold mornings with the remote starter has also killed this number. Thank god its finally warming up in PA,
Posted 01 May 2015 - 06:28 PM
As the newness wears off and the weather warms up you may do better, byt a couple mpg's. Right now it's too much fun.
Highway mpg's are pretty good if you stay close to the speed limit.
Posted 26 January 2016 - 07:11 PM
very good milage. 22 mpg town/hwy. 25-27 hwy only Happy with that. My check is testing it against mile makers on the highway. When signs say 2 miles to exit I check odometer and it is right on. Standard V-6, Front wheel drive.