so a buddy of mine has this 90 300zx na auto. got an interior put in it years ago as well as us putting wheels and tires on it. it sat for like 5 years at my shop and who knows how long before we got it. well one day a few years ago and took it out on the highway and busted 100. came back with a little white smoke coming from under the middle of the car. we parked it and it sat again. well last weeek he came in and gave me the registration and [lates and said drive it whenever you want do im going to flush every fluid and seafoam it. is that smoke something to worry about or just do it and hope for the best? it was running great even after the little bit of smoke. if i do it up he might end up giving me the car after i show him a 5 or 600 repair bill plus labor and just wanted to ask the real z car drivers if it was anything to worry about or just junk burning off it. was white smoke too not thick

 

If you really don't know I guess you might as well try driving it around again until something does come up. After you've cleaned it up a bit of course.