When you say oil is getting into the intake, are you talking about in the intake tube and throttle body? Or into the intake manifold?
There should be a breather tube connected to the intake tube near the MAF
. This lets fresh air INTO the crankcase. The PCV
then draws air out of the crankcase into the intake manifold. If there is oil in the intake tube and all over the throttle body, then the PCV
valve is stuck shut or cloggedl. Crankcase pressure is blowing back out the breather into the intake tube taking oil with it.