2011 150 not happy need advise for fixes
Hotshot
Joined: Feb 2003
Posts: 11,537
Likes: 27
From: Long Beach, Ms.
The mileage figures advertized are calculated from testing done on Ethanol free gasoline.
If you are running 10% and up ETH mixes your mileage will be lower.
E85 vs. Gasoline Comparison Test - Edmunds.com
The drive from San Diego to Las Vegas (a popular destination for many Southern Californians) was just over 333 miles one-way — within easy reach for the Tahoe running on gasoline with its 24-gallon tank. We would drive there and back on gasoline, then repeat the journey the next day on E85. In each case we'd start and end the test at the same pump to counteract pump shut-off discrepancies.
Our preliminary E85 fuel economy estimates came out 20-25 percent lower than the Tahoe's 15 mpg city/21 mpg highway rating on gasoline. Reaching Las Vegas on a single tank of E85 looked doubtful. To avoid being stranded in the desert, we took along six gallons of E85 in plastic gas cans.
Gas Mileage of Flex-Fuel (E85) Vehicles
https://www.google.com/search?source....1._YK-oZo3w9U
If you are running 10% and up ETH mixes your mileage will be lower.
E85 vs. Gasoline Comparison Test - Edmunds.com
The drive from San Diego to Las Vegas (a popular destination for many Southern Californians) was just over 333 miles one-way — within easy reach for the Tahoe running on gasoline with its 24-gallon tank. We would drive there and back on gasoline, then repeat the journey the next day on E85. In each case we'd start and end the test at the same pump to counteract pump shut-off discrepancies.
Our preliminary E85 fuel economy estimates came out 20-25 percent lower than the Tahoe's 15 mpg city/21 mpg highway rating on gasoline. Reaching Las Vegas on a single tank of E85 looked doubtful. To avoid being stranded in the desert, we took along six gallons of E85 in plastic gas cans.
Gas Mileage of Flex-Fuel (E85) Vehicles
https://www.google.com/search?source....1._YK-oZo3w9U
Cargo Master
Joined: Jul 2003
Posts: 3,356
Likes: 250
we have a 2012 FX4 and don't have any of the issues you are having. Our truck has the eco boost and 3.73 gears and the lifetime avg. is just under 17mpg. The truck only has 3000 miles on it so it's not really broken in yet and with the larger tires we probably won't get the great mileage everyone else gets.
Cargo Master
Joined: Oct 2010
Posts: 2,761
Likes: 534
From: barton city mi
Thanks shorebird, interesting. I knew E85 wasn't much of an alternative fuel regarding cost and mileage. I never had an engine that could use until recently, and was glad I burned it off and got back to gas. Just the gut feeling and minimal thinking I did about it, was enough to keep me from buying again.
Guess I've been away from gas engines too long, I didn't remember that happening. I've had my Ranger since new in '04, but really haven't kept up closely on the difference between summer and winter blends like I do on a diesel. Although, I had noticed a slight difference, very slight in that I thought it may just have been me getting on it a bit more.
. I'll have to keep a better eye on things it looks like. I do know, my last tank on the Ranger, I got just a bit less than 22, the next tank will likely be on winter blend, so we shall see.
It just seemed like around 2 mpg was a bit extreme.
Guess I've been away from gas engines too long, I didn't remember that happening. I've had my Ranger since new in '04, but really haven't kept up closely on the difference between summer and winter blends like I do on a diesel. Although, I had noticed a slight difference, very slight in that I thought it may just have been me getting on it a bit more.
. I'll have to keep a better eye on things it looks like. I do know, my last tank on the Ranger, I got just a bit less than 22, the next tank will likely be on winter blend, so we shall see.
It just seemed like around 2 mpg was a bit extreme.
4wd High
Joined: Jul 2009
Posts: 9
Likes: 0
I'm a year and a half and 28,000 miles into a 2011 Ecoboost and knock on wood it's been a trouble free vehicle as have all our Fords since 2009.
This is the third F150 in the family since 2009; my wife still drives and loves her 2009 5.4 XLT, I drove a 2010 SCAB for a year but quickly tired of dealing with awkward rear doors so I upgraded to a 2011 SCREW.
The 2009 5.4 with a 3.11 rear averages 17.8 mpg which was great compared to the 2010 5.4 with the 3.71, I never got above 17 mpg. Now with the Ecoboost I averaged 18.9 all summer but with the cool weather it's slowly falling, 18.5 the last few tanks.
This is the third F150 in the family since 2009; my wife still drives and loves her 2009 5.4 XLT, I drove a 2010 SCAB for a year but quickly tired of dealing with awkward rear doors so I upgraded to a 2011 SCREW.
The 2009 5.4 with a 3.11 rear averages 17.8 mpg which was great compared to the 2010 5.4 with the 3.71, I never got above 17 mpg. Now with the Ecoboost I averaged 18.9 all summer but with the cool weather it's slowly falling, 18.5 the last few tanks.
Super Moderator
Joined: Jan 2008
Posts: 39,920
Likes: 1,509
From: Maine, Virginia
My '88 F-150 and every vehicle that I've ever owned has gotten worse mpg's in the winter than in the summer. Until I joined FTE, I never knew that gas was blended seasonally. My friends and family didn't now it until I found out, thus no real explanation as to why mpg's drop in the winter.
Elder User
Joined: Jun 2008
Posts: 574
Likes: 1
My '88 F-150 and every vehicle that I've ever owned has gotten worse mpg's in the winter than in the summer. Until I joined FTE, I never knew that gas was blended seasonally. My friends and family didn't now it until I found out, thus no real explanation as to why mpg's drop in the winter.
What I do know from years of racing is that in the winter there is less humidity and the air is physically more dense. What use to take 2 cudic inches of O2 would only fill 1 cubic inch. Meaning you could add an extra cube of fuel for more power. For some odd reason in EFI cars they tend to over fuel in the winter to fatten up the mix and retard timing. I'd assume it's to produce more heat in the motor.
In racing we would use less fuel and make more power but every EFI car or truck gets worse MPG. I never see much performance increase.
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