The wear present in bores, rings, and valve guides that cause loss of compression is measurable in 100th or even 10th of millimetres not 100th of micrometers which is the level XADO say it works at. Assuming it works I do not see how adding 0.00001 mm to a surface worn by 0.1 mm will help much.
Oxycodone is a strong opioid narcotic pain reliever (analgesic), and Vicodin is a combination of two drugs, hydrocodone (a strong narcotic pain reliever) and acetaminophen (Tylenol). Oxycodone and hydrocodone are similar to other drugs that are opioid narcotics, for example, methadone, fentanyl, and morphine. Both oxycodone and Vicodin are prescribed to treat moderate to severe pain. However, hydrocodone also may prescribed to treat fever, inflammation, and cough.
Percocet is a brand-name prescription narcotic within the opioid family used to alleviate pain. It combines Oxycodone with Acetaminophen, a common over-the-counter pain reliever. The Acetaminophen enhances the effectiveness of the Oxycodone, however, making it a powerful drug with a high risk of addiction.