I have a Pathfinder that really smokes out the tailpipe. Most of the time is a puffy white but many times it will turn blue and you can clearly smell oil. I sell used cars and have been around over 40 used Pathfinder plus countless new ones. I have never seen this before, At first I thought it was just normal smoke exhaust you see when it is cold out.....it just does not go away. I can start all of the cars around it and after about 5 mins the rest of them have clear exhaust coming out. When driving it....it clearly leaves a trail. I took it to the local Nissan dealership and they have not seen it before. They can only conclude it must be some type of Blow By......they suggested I get a new engine. Oh really....just a new engine.....Why didn't I think of that and do it already.
Any thoughts from you guys?