My parents have 95 e320 that was purchased new,it currently has 93k on the clock. It has developed an oil leak at the rear of the engine on the passenger side but I cannot find the exact source. My dad seems to think it may be the camshaft seals......the oil is literally pouring out. The top and sides of the engine are clean so leads me to rule out the valve cover gasket. I really need help with this one; can some of you gurus chime in.

 

Have you tried K&W Metalic Block Seal?
That stuff works pretty from what everyone is talking about.
Also try and Gold Eagle "NO LEAK" .
Let me know what happens.