[patrickt]

Originally Posted by CHANMADD

The oil cooler cannot work properly without a thermostat. It's the same principle as the coolant . It has to , the fluid that is.slow down whilst its in the cooler so that it can cool. If it rushes through it just comes out the other side uncooled, and return to the engine hot.

"... if you increase the amount of turbulence and make the oil follow a more tortuous path so as to bring it into greater contact with the cooling surface area to obtain greater heat dissipation you will increase the oil pressure drop, often the very problem you are fitting an oil cooler to avoid. "

Source: Oil Cooling, frequently asked questions :: Mocal