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Engine Oil Leaks on Porsche 911

Problem Description and Possible Solution

Over time, the engine can leak oil at various locations. Early-production vehicles require engine disassembly and modification to resolve leaks at the cylinder heads, oil return tubes, valve covers, timing cover, chain housings, case through bolts, and lines to/from the oil cooler.

Problem Data
RepairPal Verified
Average mileage: 66,475 (37,900–113,000)
Engines affected: 3.6L 6 Cylinder, 6 Cylinder
9 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998
14 people reported this problem
Viewing 1 - 3 of 3 comments
Oil leak--What needs to be done. What is the cost.
Engine smoking at idle from driver side. Then, oil puddle found under car after winter storage. Upper valve seals need replacing. Done at dealer. Mid- price fix. Around $1000.
Carrera S having excessve oil leak.