Finally checked my cylinder compression today (warmed up engine) and got pretty good numbers, so I think my valves are doing the thing. I'm going to swap out the VERY old O2 sensor next and see what that accomplishes...

1) 170

2) 165

3) 165

4) 172

5) 167

6) 163

Btw, if anybody out there is interested in a gauge recommendation, the Lisle 20250 set worked very well for me.

Your burning oil. Rings or valve issue. Not good

Linda S

Blue smoke usually denotes oil getting into the combustion chamber. This could be from a blown head gasket or bad rings or valves.

Rich running engines produce black colored exhaust smoke. There would also be a strong smell of fuel. White smoke means water is getting into the combustion chamber. Blown head gasket is the usual cause.

Do a compression test on all cylinders and see what you get for a reading. A vacuum gage on a manifold port will also point you to possible causes.