Sudden Drop in Fuel Mileage... - Page 2 - Ford F150 Forum - Community of Ford Truck Fans

Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > 2009 - 2014 Ford F150
Log In 

Sudden Drop in Fuel Mileage...

Thread Tools Search this Thread
Old 10-11-2012, 10:36 AM   #11
Senior Member
geabis's Avatar
Join Date: Feb 2011
Posts: 655
Thanks: 0
Thanked 10 Times in 9 Posts

I would have to say that it is the winter blend. Cooler air intake will make more power bc of the denser air and basically balance out bc it takes more gas to run the denser air mixture but the result is more power so I doubt you would see an efficiency difference. Tire pressure would be an area I would look at. Under inflation makes more rolling resistance. Up here in pa we run winter blend from the beginning of September to the end of may. And it makes for a 1-2 mpg difference. And defiantly give a sluggish feel.
geabis is offline   Reply With Quote
Join F150 Forum

Join Today - It's Totally Free!

Are you a Ford F150 fan? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's a great place for Ford F150 Fans to meet online.
Once you join you'll be able to post messages, upload pictures of your truck, and have a great time with other Ford F150 fans. Whether your an old timer or just bought your F150 you'll find that is a great community to join. Best of all it's totally free!

Join Today! - Click Here JOIN FOR FREE

Old 10-14-2012, 01:39 PM   #12
Senior Member
MRigs81's Avatar
Join Date: Jun 2012
Location: Manakin Sabot, VA
Posts: 200
Thanked 21 Times in 16 Posts

In the last 2 days I drove from Richmond, Va to Lancaster, Pa and back. Temps were between 55 and 65. I was getting 20.7 on the way up an 21.5 on the way back down. I was quite impressed because I was running about 75mph when I could. The other part that I was impressed about was all the damn traffic I fought with stop and go on the interstates and beltways.
Gun owner or victim? You make the choice.
MRigs81 is offline   Reply With Quote
Old 10-14-2012, 04:24 PM   #13
Senior Member
Join Date: Apr 2012
Location: Northern MN
Posts: 253
Thanked 5 Times in 5 Posts

I've notice my mileage isn't the best until my tranny warms up above 120*F. Hopping on the highway on a cool 30*f morning it took me a good 20 MILES to get up to 120*f on the tranny. I reset the MPG on the dash and was only averaging 16mpg up to that point, once the tranny got up to 120*f the mileage started climbing and settled in @ 19mpg crusing 75mph My Fusion is the same way, cold start winter mornings drop my MPG atleast 3-4mpg, some nice -10* mornings my tranny never warms up enough to lock the converter on my 12.5 mile work drive!
2012 Candy Red XLT Scab 4x4 5.0L "Loaded Minus the tailgate/box steps!"
2010 Fusion SE 2.5L
1996 Thunderbird 3.8L V6 with 274rwhp/299rwtq @ 8psi
CAT 793D - 2350hp v16 - 240ton payload - Company Supplied work truck!
rancherlee is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
'95 F150 5.0L fuel system woes RetTankMech Drivetrain 4 07-15-2016 09:17 PM
strange fuel pressure readings. Forddude86 1997 - 2003 Ford F150 6 02-08-2016 03:37 PM
1993 F150 fuel / starting problems 93 Ford 1987 - 1996 F150 35 09-28-2015 02:48 PM
4.9 Carb Fuel Guage Problem. Unique? 1986Ford4.9 General F150 Discussion 6 09-16-2015 05:37 PM
1991 Replacing fuel tank jdavis16 1987 - 1996 F150 6 09-16-2015 08:08 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 05:03 PM.

Copyright 2006 - 20011
This site is in no way affiliated with the Ford Motor Company.