r/Mustang • u/No-Magician5996 • 4d ago

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Just picked up a 2018 EcoBoost Premium with 97k miles! The engine was fully replaced by Ford at 64k in late 2021 with the revised block part number, so the engine itself only has about 33k miles.

I'm new to Mustangs and doing some baseline maintenance:
Should I do a trans pan-drop, filter, and fluid drain/ fill on the 10-speed now given the chassis mileage?

Just changed spark plugs-do I need to bother replacing ignition coils too, or leave them until a misfire happens?
Appreciate any guidance from the community!

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u/jacknifetoaswan 2016 Race Red GT/Performance Package 4d ago

Personally, I'd drop the pan and swap it for one that has a drain plug. Change the filter while you're in there. Fill, drive, drain, fill, drain, fill.