Quote Originally Posted by Gussie2000 View Post
I got to agree with you about this one,my mech told the same thing as you explained here.

The PCV should be replace every oil change just for the sake of the engine.
This is all good as long as the pcv valve functions properly for 3000 miles. I had a brand new one malfunction and lost 2 qts of oil in the first 1000 miles After an oil change and pcv valve change. If I had not checked the oil level before leaving on a 3 hr trip to NH I would have had a seized motor.

Also I would have to disagree with this statement:
"Then...add in a malfunctioning PCV which leads to high crankcase pressure that "resists" the oil in the cylinder attempting to return back to the oil pan.

Now that you have oil lingering around in the cylinders due to opposing pressure of a stuck PCV and higher cylinder temps due to a stuck EGR you get alot of oil burn-off during the combustion process."

There should be no oil in the cylinder trying to return to the pan. Any oil that gets past the rings or is sucked in through the pcv valve will not return to the oil pan it gets burned. Or do you mean the oil in the crankcase below the piston on the cylinder wall ? shawn