I preach proper maintenance...
6.5qts Mobil 1 with a K&N Filter (3-5k/4 mos)
"Tranny cocktail" (Mobil 1 ATF & FM) every 20k/2yrs - Keep those syncros happy, healthy, and clean
Don't forget the P/S fluid & brake fluid every 2 years as well.
You should see the brake fluid I just flushed out after only 2 years!!!

Between the heavy braking and beeing used in the clutch hydraulics... Damn...
Fresh Valvoline Synpower to the rescue...
The P/S fluid looked fine, though my pump is under driven nearly 20%.

More Mobil 1 ATF here...