Video on oil and gas additives

[Steeveedee]

Originally Posted by MikeB

If an additive adds, let's say, 100 ppm calcium to a test oil, then we can expect it would add that amount to virtually any oil.

True enough. But at the end, he was talking about other oils and different additives, not base oil. Some of those oils have their own additive packages which other additives could drive the numbers above factory spec. I only ever have added STP in my truck, mainly due to the age of the engine. I'm rethinking that, based on what this guy reported in his results.