Hey, i got a 1990 300zx TT and i get a slight white smoke out of the tailpipes and sometimes a loss of power, usually when i first start the car in cold weather (i got it a month ago, so havn't had a chance in warmer weather). Sometimes it'll run like a champ, but ocassionally it looses power and runs really rough. Im pretty sure it's the head gasket, but i dont have the funds to fix that right now. I was looking at this stuffhttp://
www.crcindustries.com/a....aspxDoes anyone have any experience with this stuff? If not, whats the best stuff to use? Thanks in advance for any input