Oil leak............HELP!!

Car is '90 Eclipse GS 2.0 DOHC. The other day i noticed a small amount of oil under my car. I inspected and found it was coming from trans. I reached up and felt, and there was oil all over the flywheel. I just changed my oil and it is clean, the oil being leaked is BLACK, so it's probably gear oil. Could this possably affect my clutch? Maybe that is the reason it cuts out @ high RPM's in 2nd gear? Thanks for any help!

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