6.7 fluid changes
Super Moderator
Joined: Aug 2008
Posts: 37,375
Likes: 1,860
From: Frederick, MD
Consult the book. Off hand I think the coolant is good for 105K miles. But you need to test your coolant every 15K miles or so. There is a test kit for that:
[328-R071-ELC ]Ford/Rotunda ANTIFREEZE COOLANT ELC CONTAMINATION KIT (Ford 6.7 diesel)
Trans is suppose to be good for approx. 150K. (don't quote me, look it up).
I will be changing my trans with a heated flush at 60K though, that is just me. I will do the transfer case and rear diff at that time as well though.
[328-R071-ELC ]Ford/Rotunda ANTIFREEZE COOLANT ELC CONTAMINATION KIT (Ford 6.7 diesel)
Trans is suppose to be good for approx. 150K. (don't quote me, look it up).
I will be changing my trans with a heated flush at 60K though, that is just me. I will do the transfer case and rear diff at that time as well though.
Hotshot
Joined: Jun 2006
Posts: 15,447
Likes: 3
From: Hampstead, NC
Depending on use, which is often towing, I do the drive line every 50k. Trans, Tcase, diffs.
Coolant drain and fill every 30k.
It might be overkill, but it's all cheaper than the replacement components.
Coolant drain and fill every 30k.
It might be overkill, but it's all cheaper than the replacement components.
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MikeDVB
2015 - 2020 F150
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Feb 6, 2018 05:30 PM
