- July 12, 2016
- By hdmotorwerks
- In Diagnostics, Engine, Filters, Oils
- 6400
- 0
911s have great performance but they do need maintenance. Oil leaks are a common problem on older Porsche models as well as new models. Valve covers are infamous for leaking, specifically on the 911s equipped with magnesium valve covers. If it is leaking, change the gaskets first. There are available silicone beaded gaskets which more flexible and