Quote Originally Posted by simontibbett
Yeah PUT A TSTAT in, if it's running HOT HOT without the tstat, then it's REALLY hot. Like others said running no tstat doesn't make it run cooler.

Check oil for sure, if you are losing coolant and no leaks, you probably have a leaking headgasket, if you keep running it hot it will blow very soon.
its why i keep asking if he has water in his oil. a lot of the times, from what i've seen, its either the gasket or t-stat. and on occasions, the temp sensor.

and very very rare occasion, no enough antifreeze, causing it to not cool at all.