after i wrote this i saw YRHKIRA replied first which is basiclly the same so ill just leave my explaination aswell lol... it is quite normal to see oil come out of the breather, the reason it does that is because of the PCV (positive crankcase ventilation). On the compression stroke, a small amount of gases in the combustion chamber escapes the piston and sits at the bottom of your engine, when you drive your car harder it builds up pressure and forces oil back up to the top which is why you see oil come out of your hose. On my 2T-G i only have a little filter sitting on my rocker cover and that leaks after driving for abit. Im saving up for an oil catch can that way the oil can go straight to the can and you can just unscrew the bottom and let the oil drain every so often, beats cleaning your rocker cover and getting oil all over your engine bay and eventually in where your spark plugs are. hope that helps