I picked up some Mobile 1 synthetic lube yesterday. Removed my Forge BPV for a good cleaning and relube. When I opened up the BPV I was surprised at how sticky the original lube had become. The piston didn't want to come out. Took more force than it should, had the lube been slick. I cleaned all the old sticky lube out and got the BPV spotless. I opened up the canister of Mobile 1 lube I just bought and that stuff is good and slick (not sticky at all). Wasn't sure how much to apply, so I gave it a good coating. I made sure the piston could move up and down freely. So far so good. Car seems much happier even when cold. Thanks for the suggestion guys. Glad it's that easy. I'll add that to my normal maintenance list.