its loosing coolant quick but its not going on the ground and i can't find a leak, i don't think its a headgasket because it does not smoke and does not miss or anything so any ideas?? thanks

 

Hate to say this, but check your tailpipes when hot. Had the same thing happen to a 97 that I bought. It was running hot and I could not see where it was leaking to. Had to be cracked heads running down the exhaust. Ditched the caddy and bought another one.

 

i ran it for about 30 minutes today and there is no smoke or anything coming from the exaust, when i take my radiator cap off there is a slimey green buildup on the inside of the cap, i was told it could be evaporating through the cap if it is bad, i don't know whats wrong with it

 

That's a cheap and easy fix, let's hope for that. That would be great.

 

put a new radiator cap on it and it stopped running hot and there is no more lost coolant, simple and easy fix, i'm glad too