Passenger side collects oil. Drivers side is always bone dry.
1)Is that normal?
2)Is there any reason for that?

 

2011 GTVert, Yes , this is normally correct for the passengers side. I only install a, oil separator, on BOTH sides, if the engine has any sort of aspiration. As part of your Mustang’s Positive Crankcase Ventilation (PCV) system, there is a line that connects the crankcase back to the intake tract to release excess gases back through the engine. A way to recycle unused gas fumes, in a way.

The problem is, oil sits in the bottom of the crankcase and can be kicked up during high performance driving conditions. When these oil vapors are picked up and sent through the PCV system back into the intake, oil can coat the linings of your intake, throttle body and interior of your intake manifold which could drastically reduce efficiency. Which, in turn, could result in a loss of power, diluted gas and lowered octane level.

Oil blow-by is worth noticing on naturally aspirated engines, but drastically increased on turbocharged and supercharged engines.

 

Buck, thank you for what I would say is the best answer and explanation for oil cans that i have ever seen.

Steve

 

This left the old fart scratching his head! I use an oil can to lubricate bolt threads..........

 

1. Yes.
2. Buck Sargeant has already explained that very well.

Mine behaves the same way. I have a valve cover breather on the driver's side that always remains dry, and a DIY oil catch can breather on the passenger side that collects just a tiny amount of oil.