Yeah this has GOT to stop. 3rd time since I put in the new engine. I only have 700 miles on it. I bought one of the Wagner dual flow PCV valves. According to their testing it keeps the crankcase under vacuum 99% of the time. It's expensive $129.00 but if it saves me from ever replacing another rear main seal then I'm in. Here's the link in case you're interested.
Dual Flow Adjustable PCV Valve – M/E Wagner Performance Products
