The MOCAL operation is interesting. It does not block flow to the cooler when the temp is below the XXX value.
Oil coming from the enigne to the theromstat housing has the "option" of going either through the cooler or back to the engine when it is cold. It uses the increase in drag/restriction for the
oil to "choose" its direction, which is basically the path of less resistance. So if you are looking for something that will bring your
oil temperature up to temp fastest I don;t thin the MOCAL is the way to go (I'm not sure how the canton works). If you are driving in a cold environment this is not the way to go. I didn't know this was how the MOCAL worked before I purchased it or I would have looked into others.
VW (IMO) has the best design for getting the oil up to temp in their oil/water heat exchanger plate. ...I'm sure other companies have also done this config also.