i have a 1996 Buick century just came back from mechanic head gasket is gone and there is anti freeze in my oil i guess if you had water in your rad then you would have water in your oil.
It could be the heater core leaking.
Water.
Failed water pump bearings, loose bolts. Remember : "Stuff Breaks"
No
Around 500$
Britain
Yes.
The radiator on a 98 Buick Century is flushed by turning the petcock to drain the coolant. Water is then flushed through the system until all contaminants are removed.
I would say that you are losing coolant somewhere hoses,water pump,radiator.
Between passenger front wheel and water pump
The heater fuse on a 2000 Buick Century is located on the right side of the engine compartment, in a water tight box. It houses many of the major fuses for the vehicle's electrical system.
Checkhttp://autorepair.about.com/library/faqs/bl113g.htm