well this is my second 300zxt 2 2. got it for $1000 plus towing fees. i got it home gave it a wash and started to inspect it. the last owner had a over heating problem. took it to a mechanic (not a good one) the tech replaced all the lhoses and maybe the rad. but did not touch the thermistat. so his opinion was the head gasket was blowen when all it was was the thermistat and well he was right but if he did replace it the head gasket would still be good but i got my grey z engine and trans in it now trans was shot to, but now its the best of the 3 300zx i have so smoth and quiet its great.