1995 850 turbo possible to never change pcv?

[2012]

Just wondering if anyone has gone a lot of miles on the 850s without never changing the pcv? Mine has 156000 miles and is still bone dry underneath. Anyone else still rolling around with the original pcv?

[mecheng]

You need to do the glove inflation test to determine if your PCV is good, not check for oil leaks. Oil leaks are what you want to prevent.

[obayha]

I will do a glove test soon. The '99 V70 I just picked up, is said to have the original pcv system in it. It has 166,000 miles on it now. The person I purchased it from ran a Volvo shop and did all the work on it most of it's life and ended up buying it from the owner a couple years ago. His theory is oil changes every 3,000 miles has kept the system clean. I'll admit I was a little slack on my other V70 as far as oil changes go, but I will keep up with the 3,000 and see what happens. That's maybe 8-10 a year. Any thoughts on trying full synthetic, to extend the time a little?
So far this car has been a plug and play from the day I purchased it.
I know you were asking about the 850 turbo, but just adding a little.
Shane

[dosbricks]

I've used full synthetic in both our cars since we got them 17 years ago. Both have required replacement of the PCV. Synthetic will keep an engine cleaner, but it's not a miracle cure for the Swedish PCV system. Better to replace it before blowing a seal. And at around 160k, now is the the time to do it.

[polskamafia mjl]

+1 for replacing the PCV. Its a straight forward enough task that there's no reason to delay doing it. The idea is to replace the system before you build enough pressure to blow seals and create leaks. Once you're leaking its already too late, the damage is done.

Do the glove test and replace the PCV system.

Using synthetic oil is a great idea and I highly recommend it but it won't do much to stave off the PCV replacement.