First off, I searched and found numerous stuff but was trying to see if anyone had the exact same symptoms as me. Car is a 94 6spd, mods are 3" catless dp and hks smf intake. I get a little smoke on startup, (mostly cold starts, and more-so when the car has sat for a while) but I chalked this up to being the valve stem seals. However, the other day I noticed that when idling, if I revved it a bit, a bit of bluish oil smoke would come out of the exhaust. After checking it out for a while I noticed that if I tried it right when I came back from driving, there was only a TINY bit of smoke coming out. However, if I let it idle for a while then tried it, more smoke came out. What im wondering is if by those symptoms would it point to the valve stem seals, turbo seals, or possibly a ring? Im HOPING it could be the pcv valve but I dont know if I will be that lucky. The car has 75k miles on it, previous owner was BPU so I wont count out turbo seals. Thanks in advance, much appreciated.