Took about an hour to do, car feels amazing. I highly recommend if you have access to a lift, get your self some Redline MT-90 for your transmission, and Redline 75W90 for your differential. I used Royal Purple 5W20 synthetic oil in the engine, it feels fantastic... this is my first oil change by the way. As for the transmission, shifting is a lot smoother, less noise from the transmission, and hardly any 1-2 gear roughness. Overall, i'm extremely happy with the my decision to change these fluids. This was a DIY btw, used my friends shop in Jersey to get it on a lift.

 

I just did it last weekend @ the 1500 mile mark. My transmission was filled with a grayish metallic laiden fluid towards the botton...not to mention the fluid looked like a whitish, muddy yellow, was really horrible looking. It kinda reminded me of infectious nasal discharge....yeah...thats gross I know. The date on the car is 09/04 so its been festerin in the gearbox a while.

 

I did trans and diff last weekend or the weekend before at 20,000 / two years. I can't tell a real difference. Also, before you do it, invest in a nice hydraulic jack. It'll be worth the extra cash. I wish I had done it instead of getting a cheaper one.

 

I highly recommend it too. I have RP 5W20 for the engine and RP gear oil for the trans.