[Jake Raby]

Something added to the oil that cleans lifters will make the problem WORSE. The reason for this is the lifters only have ONE hole that allows oil to enter into them, oil does NOT pass through them.

So adding something to the oil that cleans the lifters simply washes the other debris in the engine into the lifters and tensioners.

If the lifters had two oil passages, and oil passed through them the additives may be effective.