Super simple DIY. This guy isn't the most exciting mechanic to watch but he get's the job done. I didn't use any of the products he used/showed. Drained old fluid into an oil pan, filled with a hand pump till it ran out the fill hole. I had the car jacked up, after the fluid came out the top hole, I lowered it so level and let any excess fluid drain into pan then jacked it back up to reinstall fill hole bolt.
7mm Allen socket and ratchet
Fluid Pump- https://www.amsoil.com/shop/by-product/garage-accessories/bottle-hand-pump/
Capicity says 2 qts but it took just over 2 qts till it started to flow out of the hole, so I got 3 qts-
Fluid I used- https://www.amsoil.com/shop/by-product/transmission-fluid/manual/manual-transmission-and-transaxle-gear-lube-75w-90/
Auto Blog- https://blog.bavauto.com/15729/