Guilty although I probably dumped closer to 2/3rd of it in. With all the years of reading posts about fretting over what oil to use it seems like dumping 12 oz of "mystery oil" (ok petroleum distillates and solvents) into an engine is risky business
I put on 5-600 km/week so if it doesn't work over the next week or 2 I'll just dump the oil and replace the lifter.