Cylinder Failures are "Mode of Failure #1". This is because the very first documented mode of failure that we experienced was a cylinder failure. Cylinder failures are catastrophic and generally strike 1999 model year (but are not limited to) Boxster and 996 engines.
If your engine has intermixed oil and coolant this is one of several failures that could have led to the condition. We are specialists with cylinder related failures and intermix failures. Call our failure hotline to speak with a specialist today.
See the below pictorial to better understand the dynamics behind cylinder failures..