Engine Oil Cooler

Konniciwa.

Engine oil cooler is one of the must have item for those who love to whack their car on track days without sacrificing their engine reliability. So in today's post i would like to share some of the informations about engine oil cooler. Picture below is an example of what engine cooler look alike.

Engine oil cooler kit

Engines Internal parts (combustion) need lubricant in order to operate. In cars, that lubricant is known appropriately as motor oil/engine oil or whatever you call it. The key measure of a motor oil is its 'viscosity' . Viscosity is the state of being thick, sticky and semifluid in consistency, due to internal friction. When heated, motor oil tends to lose its viscosity; if the oil is heated far enough, it will thin out enough that it cannot serve its primary function of lubricating the engine's moving parts. Lubrication, however, is not oil's only function. It also serves as a coolant, transporting heat from inside the engine block to the oil pan, where it can be dissipated into the surrounding air. Problems arise when an engine is running fast enough and hot enough that the oil is never left in the pan long enough to properly cool. This usually happens suddenly, since engine temperatures rise with increased engine revs. As a result, engines that run fast and long are vulnerable to oil breakdown.

The engine oil cooler is one of the solution. An engine oil cooler is nothing more complicated than a separate radiator dedicated to the engine's oil supply. An oil line is run (usually from the oil filter adapter) to the oil cooler, which is placed somewhere in the flow of outside (cooler) air, such as behind the engine fan. Oil leaves the engine and then runs to the cooler, which is typically a finned metal block with passages through it for the oil. The increased surface area and cooler airflow cools the oil more quickly than the oil pan, and the oil (and engine) can withstand higher heat.

I've heard some people said that the engine oil cooler it is not good but i just can't accept that. If it is not good, then what's the reason of invented it? Or maybe you can share with us any cons of using it?

regards.