I think IIRC it dealt with the idea of pulling/sucking oil out of the system. So, if the outlet from the motor to the catch can is higher, then you are right, oil would tend to go downward, towards the catch can.
I'm not sure if this is true. I just know I try to keep the catch can higher or at the same level of wherever the line is connected to the motor.
Bryan
I'm not sure if this is true. I just know I try to keep the catch can higher or at the same level of wherever the line is connected to the motor.
Bryan