Thanks for sharing....glad it worked for you.My daughter’s 2002 Blazer, 4.3 V6, was using about one quart of oil per week. No smoke, no leaks. Changed the oil. 3.5 quarts and one quart of Lucas Oil Stabilizer. 10 days in and no significant loss of oil.
My 91 Chevrolet K1500, 4.3 V6, was smoking like crazy and using oil due to bad valve guides. Changed oil, substituted one quart of LOS. It was smoking both on start up and while running. Now, just on startup and significantly less. 10 days in and no sign of oil consumption.
Will continue to monitor and update.