[Alan Roehrich]

Just FYI, I saw a lifter exactly like the one in the OP, during an online seminar. The diagnosis was EXCESSIVE amounts of ZDDP in the oil. Apparently, people are playing "chemist" with oils, without knowing what they're doing. And, of course, there's always those who think, "if a little is good, more is better, and too much is just right". Doesn't really work with additive packages in motor oil. Once you exceed a certain concentrations, additives such as ZDDP and moly disulfide are no long additives, but rather pollutants and contaminants. They cause damage, fall out of suspension (ever seen a 1/4" plus of gray mud in the bottom of your oil pan?) and clog oil filters.



It should be noted that, over the years, there have been multiple incidences of oil additive packages being incompatible with certain components, a prime example is that several years back, the Joe Gibbs oils were causing a specific DLC coating to fail in the NASCAR Cup series engines. The DLC flaked off in just a few laps.


Never been a huge fan of DLC to begin with, it is a very "picky" thing. It doesn't like certain materials (it cannot be used against cast iron), it doesn't like certain processes, the various versions are NOT all the same, and it doesn't like certain oils or additive packages.


I have not tried it personally, but many are saying "Oil Extreme" is a good additive, used correctly. However, as with anything else, it is NOT going to be compatible with every oil.