Originally Posted By: hjones
Always been skeptical about additives but since newer oils are relatively low in zddp , I've used this at about 1/3 rd recommende dose in my 2005 dodge 2.7 L (notorious for sludge related problems) thanks for your reply
Does the 2.7L have flat lifters with extremely high spring pressures? No? Then why the concern about ZDDP levels?
If you are concerned about an engine with sludge-related issues the last thing you should be doing is "dosing" the carefully balanced lubricant, potentially upsetting that balance, with some "Wizard in a Can" as Trav would call it.