Weistec's Oil / Air Separator system is a must have for completely stock vehicles, to those upgraded with the Weistec Supercharger. The separator system vastly decreases oil retention by the engine, reduces detonation (Knock), and can ultimately save the life of the engine internals.
As the excess crankcase pressure is vented through the PCV valve and into the intake manifold the engine will eventually draw in, not only air which is wanted, but also particles of aerated oil which creates instability in power due to the low octane level of oil.
