BobLevine Dealer listed the PCV valve as a 30K replacement interval even though the Toyota maintenance guide does not list it. I usually change these but asked the dealer for the cost to do it. Was told the PCV is under the intake manifold requiring much labor. Cost over $180. Saw an example on youtube and it looked like a big job. No drivability issues. Sounds early to do this given the terrible position of the part. What do you think?