One problem related to manual transmission has been reported for the 2000 Subaru Outback. The most recently reported issues are listed below.
Several weeks ago the dealer replaced the first gear of the manual transmission because it repeatedly came out of gear when going down steep inclines, such as in a parking garage. After the work was completed, the car emitted a very strong smell. I have taken the car back to the dealer four times. The last time the dealer said the seals on the transmission were leaking and replaced. It is apparent that a petroleum product is leaking onto the exhaust system and burning and the smell enters the ventilation system while the car is stationary. Dealer says I need to keep a/c on and the recycle air button pushed. Issues unresolved.