Trans Temp
Thread Starter
|
New User
Joined: Feb 2007
Posts: 4
Likes: 0
Trans Temp
Guys,
I just bought a 2011 F150 CC 5.0 3.55 axle 4x2 Lariat. Beautiful truck. My question the transmision temp is running 195- 197deg(digital read out) while driving on the Interstate 70-75 mph(no trailor or load). This is alot higher than the 03'F250 I just traded in(165-170). Is this what everyone is seeing? Also got 18.5 mpg on the first tank, driving 70-75mph down the Interstate.
I just bought a 2011 F150 CC 5.0 3.55 axle 4x2 Lariat. Beautiful truck. My question the transmision temp is running 195- 197deg(digital read out) while driving on the Interstate 70-75 mph(no trailor or load). This is alot higher than the 03'F250 I just traded in(165-170). Is this what everyone is seeing? Also got 18.5 mpg on the first tank, driving 70-75mph down the Interstate.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,695
Likes: 2,616
From: SE Florida
I don't know what they have done with these transmissions. I left Ford in February, 2007. These transmissions were just in the discussion stage.
One thing that we were talking about was running the transmissions at higher temperatures. It helps efficiency, which means increased fuel economy. Remember those charts that float around the internet showing the reduced transmission life with higher temperatures? They are flat out lies. The only grain of truth to those charts is that it is about right if you are using 1960's materials and ATF. Modern transmissions can run hundreds of thousands of miles over 200°F with no degradation at all.
I think you're worrying about nothing.
One thing that we were talking about was running the transmissions at higher temperatures. It helps efficiency, which means increased fuel economy. Remember those charts that float around the internet showing the reduced transmission life with higher temperatures? They are flat out lies. The only grain of truth to those charts is that it is about right if you are using 1960's materials and ATF. Modern transmissions can run hundreds of thousands of miles over 200°F with no degradation at all.
I think you're worrying about nothing.
Junior User
Joined: Jun 2010
Posts: 73
Likes: 0
Also be aware that Ford says the transmission fluid is "lifetime" so no need to change - unless you are doing the "severe duty" in which case they say to change at 150k miles.
Hard to believe, but it backs up what Mark is saying above.
Hard to believe, but it backs up what Mark is saying above.
Trending Topics
Thread Starter
|
New User
Joined: Feb 2007
Posts: 4
Likes: 0
Thanks Mark and everyone else. That puts my mine at ease. It is a great truck so far, but will be hard pressed to be better than F250 7.3 that i got rid of for this one.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Resident smarta$$
Joined: Aug 2006
Posts: 4,929
Likes: 9
From: Oaks,PA
Also, thanks Mark!
Thread
Thread Starter
Forum
Replies
Last Post
Dennis Peacock
1987 - 1996 F150 & Larger F-Series Trucks
9
Dec 1, 2014 08:08 PM
randyj68
1967 - 1972 F-100 & Larger F-Series Trucks
13
Nov 9, 2014 08:44 PM
