mvanover
Headed to Andromeda
There are two points of views on the air/oil separators. One is; they work and the extra two to quarts in the engine sump, is a safety factor and helps with engine cooling. The other is; the oil vapor contains exhaust by-products that actually contaminates the oil and your engine is better off with the oil vapor being vented overboard. To be honest, I don't know which is most true. Personally, I routed and secured a longer flex hose over the center engine mount as high as practical and relocated the vent tube on the right side of the firewall. I could keep about 6-1/2 to quarts in the engine sump for about 20 hrs between refills. Cheaper than an air/oil separator and is a bit of a compromise for both points of view.