the past owner was a buddie of mine. and he blew the radiator out of the car and blew the head gasket all to pieces..ive changed both of the items, i had the head checked and milled to its ok.....i havent tried a leakdown test..ive changed the valve seals myself and the head gasket, and the valve cover gasket. i cleaned the threads of all the bolts and torqued them down to the right specs and the right sequence..now when i replaced the radiator the whole comparment was full of coolant...better yet they tryed starting it and i guess they kept going until it blew smoke.. the exhaust before i fixed it had oil and coolant so bad in it that one swipe can make your finger drippy gooy black..i havent drove the car much but the problem is im getting low oil (1-1/12 qt less)after 2-3k rpm. i want to know what it is. i hope it is a o2 sensor ive searched already and so far i need a leakdown test to make sure. i hope it wasnt the valve seals because then i would have to work hard again..let me know what you think please.

 

After reading through your post, I'm a little unclear about what the exact problem is. Is there smoke coming from the exhaust? If so, what colour and at what times? Is the car consuming oil? Any other issues such as overheating, running poorly, etc.?

 

you're getting low oil pressure?

from what you're saying i don't know why you'd think an o2 sensor would be related, i think you forgot to tell us something.

 

its not overheating..it blows white smoke out the exhaust..but i think its coolant..but still i dont know where the oil is going. it only blows smoke when past 2000 rpm..

 

If your oil level keeps dropping it's burning oil. Unless it's leaking oil somehow.