My 93 Legacy Auto just started doing the same thing as yours-LSG on another board knew what was up. Check your Trans-axel fluid level-If over filled with ATF-Then your front seal is leaking into your Trans-axel. Mine started comming out the overflow tube when the Trans-axel was way overfilled with ATF. My fix is to do front seal on Transmission($1,000) or find used one. Good Luck. Dave in Tahoe.