Originally Posted by Fifty150hs

pilot mod to CCV sounds like the CCV delete I did. It was posted many years ago by C90. Only thing I did differently is add a catch can to the mod. Collects some blow by which gets dumped back into the oil filler every so often instead of getting sucked into the intake to get burned off. Plenty of folks say it shouldn't work, but it does. It cut my oil usage way down. I don't use more than a quart in 5000 miles. Then it is time for an oil change. And contrary to what lots of people say, it doesn't raise the vacuum level in the crankcase. I put a hole in a oil filler cap and plugged a vacuum line into it. I get less than 1psi vacuum. I have 393,000 miles on it.