Mustang 10R80 Transmission Fluid Change (FULL DIY Guide + Metal Chunk Discovery)
10R80 Transmission Fluid Change | 3 Years Late – DIY Mustang GT/Ecoboost Maintenance
After 3 years of hard track driving, I finally changed the transmission fluid in my 2019 Mustang GT with the 10-speed automatic (10R80). What I found inside the transmission pan shocked me — metal chunks, not just shavings. This is a full, step-by-step DIY guide to changing the transmission fluid properly, with torque specs, fluid tips, and what you should absolutely NOT ignore.
💡 Don’t make the same mistake I did — watch this first.
📋 What You’ll Need:
7–8 quarts of Motorcraft ULV transmission fluid
OEM 10R80 transmission filter and new pan seal
Oil transfer pump
Torque wrench (for 10 Nm and 12 Nm specs)
Wrench set
Pan filter Motorcraft - Trans Filter (FT202)
https://a.co/d/0G7ndu5
MOTORCRAFT Mercon Ultra Low Viscosity Fluid Automatic Transmission Fluid
https://a.co/d/cViZ92Q
Catch pan, rags, gloves
Pro Tips:
Always check fluid temperature before final level check (96–101°C)
Recheck after test drive — fluid should hit between levels 4 and 5 on the dipstick
Send your old fluid to a lab for condition analysis — especially after hard driving
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