2017 6.7 ATF question
Tuned
Joined: Dec 2003
Posts: 488
Likes: 142
From: Indianapolis
When I change ATF fluid, I measure fluid level on dipstick beforehand as specified and record that level (full, halfway, etc.). When I drop the trans pan I collect all the fluid in the drain pan. I pour the drain pan in a one gallon container that is marked with divisions of quarts and ounces. The amount that comes out is the new amount that goes in, this provides a pretty good base starting point.
Cross-Country
Joined: Feb 2010
Posts: 51
Likes: 7
From: Fernley, NV
My 2017 F350 6.7 4x4 DRW gets a pan drop and filter every 60-65k miles. I use a valveoline ATF that meets MERCON LV spec, truck has around 225k miles and has spent most of its life with around 20k trailer hooked to it. Still shifts and drives great. It typically takes around 10qts just draining the pan and changing filter. I pour into a three gallon paint mixing bucket with level marks, then refill with what came out
Logistics Pro
Joined: Sep 2002
Posts: 4,411
Likes: 1,016
From: Central KY
That's pretty much what I had. I added 9 quarts. I drove the truck to a more level spot, cycled the trans through the gears slowly, then checked again and it was at the top of the hatched zone so I left mine alone.
Interestingly, when I pulled the drain plug and drained the pan, then reinsert plug and refill it only took 6 quarts. So the filter and the shape of the pan hold 3 quarts? Wow.
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