hey guys so i have this s60 2.5t 2005 i got about a year or so ago. about a month ago i started the car up in the morning after a decent drive the night before. and i could smell a funky smell i look back and i had some blue smoke comi g from the exhaust. this being my only car at the time i checked the fluids and proceeded to drive to work.the smoke will only show up randomly at idle after a drive. and not all the time. could this have to do with the pcv? i have no knowledge of it being changed before. also i replaced the turbo with a k24 two weeks before the smoking, could it be a bad turbo seal?