Transfer case fluid
Hotshot
Joined: Oct 2015
Posts: 19,722
Likes: 12,865
From: Wyoming
Most transfer cases need ATF. The transfer case is a sealed system. There is no filter, no cooler. So the fluid can get kind of nasty if it heats up. I generally replace my transfer case fluid every 30K miles, but I do a good amount of RV towing.
I use a synthetic ATF, but I wonder if you can find a non-synthetic ATF at all.
I use a synthetic ATF, but I wonder if you can find a non-synthetic ATF at all.
Senior User
Joined: May 2016
Posts: 477
Likes: 3
Read the manual. It says maintenance is not required on the transmission until 150,000 miles.
Brochure:
http://www.autonews.com/assets/PDF/CA67871128.PDF
Another thread discussing the 150,000 mile maintenance schedule:
https://www.ford-trucks.com/forums/1...eavy-550s.html
Brochure:
http://www.autonews.com/assets/PDF/CA67871128.PDF
Another thread discussing the 150,000 mile maintenance schedule:
https://www.ford-trucks.com/forums/1...eavy-550s.html
Hotshot
Joined: Oct 2015
Posts: 19,722
Likes: 12,865
From: Wyoming
Read the manual. It says maintenance is not required on the transmission until 150,000 miles.
Brochure:
http://www.autonews.com/assets/PDF/CA67871128.PDF
Another thread discussing the 150,000 mile maintenance schedule:
https://www.ford-trucks.com/forums/1...eavy-550s.html
Brochure:
http://www.autonews.com/assets/PDF/CA67871128.PDF
Another thread discussing the 150,000 mile maintenance schedule:
https://www.ford-trucks.com/forums/1...eavy-550s.html
Senior User
Joined: May 2016
Posts: 477
Likes: 3
The transfer case has the same maintenance schedule. 150,000 miles or 60k under severe duty. 30k is overkill.
6.7L Power Stroke Maintenance Schedule & Service Information
6.7L Power Stroke Maintenance Schedule & Service Information
Senior User
Joined: May 2016
Posts: 477
Likes: 3
The top of the page in the link says what "severe duty" means... People can decide for themselves if they fall into that category.
6.7L Power Stroke Maintenance Schedule & Service Information
"Severe" duty conditions include any or any combination of the following:
• Excessive idling
• Frequent short trips in which the engine is shut-down before reaching full operating temperature
• Driving on dusty roads
• Driving off-road or in conditions that require 4 wheel drive
• Frequent towing or hauling (with the exception of very light loads)
• Using biodiesel blends greater than B5 (applies to oil, fuel filters only
6.7L Power Stroke Maintenance Schedule & Service Information
"Severe" duty conditions include any or any combination of the following:
• Excessive idling
• Frequent short trips in which the engine is shut-down before reaching full operating temperature
• Driving on dusty roads
• Driving off-road or in conditions that require 4 wheel drive
• Frequent towing or hauling (with the exception of very light loads)
• Using biodiesel blends greater than B5 (applies to oil, fuel filters only
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More Turbo
Joined: Oct 2009
Posts: 745
Likes: 10
From: upstate New York
Depending on the workload I will change all my fluids yearly anywhere from 25 to 38,000 miles a year .I have done this to every super duty since 2001 all of these trucks with the exception of the 2016 have achieved 200,000 miles and more with no issues fluids cheaper than gears.Transmission differentials and transfer case after a season of heavy snow plowing commercially is a given don't use synthetic just ford's recommended fluid it's coming out in a year anyway take care
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