mazda 626 runs great but will not stop burning oil and white smoke keeps coming out of the exuast pipe

1991 mazda 626 runs great but will not stop burning oil and white smoke keeps coming out of the exuast pipe

It sounds like two different problems. White smoke is indicative of water in the fuel. If it was oil burning the smoke would be blue.

The oil may be leaking out. Is there evidence of oil leakage on the road when you park? Check the engine for for oil leaks. 

There are additives available at auto parts stores that deal with water in the fuel supply. 

Did you check you cooling? The white smoke is from water, but I do not think that much water is in the fuel line.

If you lost cooling water then your head gasket is leaking, water goes into the cylinder(s).