Car Problem Reports

Porsche 911 Engine Oil Leaks

Porsche 911 Problem
12 Reports
Me Too

Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998

Engines Affected: 3.6L 6 Cylinder, 6 Cylinder

Average Mileage: 76,000 mi (50,000 mi - 113,000 mi)


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.

  • Visitor, , 65,000 mi

    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.

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  •  Rookie

    Oil leak--What needs to be done. What is the cost.

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