i might just try the rotella oil in mine, before i put the stem seals in it to see if it changes anything at all. Thinking about it the diesel oil does have the additives that would help a smoking engine.
After having my head rebuilt,that didn't do anything. My engine is currently being rebuilt,and upon teardown,my oil rings were fux0red,so that was 90% of my problem. My valve seals were also shot before the head was rebuilt,so $2000 later,I have myself a rebuilt motor and a new clutch to boot.
Too bad I'll spend 2 months paying it off. Totally messes up my plans for the truck this year,but atleast I can still afford to drop it!