The Uppity 12v Guy
Join Date: Jul 2013
Location: Cedar City, UT
Thanked 1,338 Times in 966 Posts
iTrader Score: 1 reviews
I like that oil a lot. I have UOA reports on my desk from 8 different test vehicles that all showed a significant decreasing trend in wear metals after switching to it from CK-4 oils. When my engine goes back together, I'm going to pull samples at regular intervals (after break-in), just keep the oil topped off, and see how long it lasts until the TBN drops below 3. It'll be a fresh engine so wear metals and oil consumption will be higher than normal, at least over the first few samples, but I'm going to beat on it pretty hard the first 500 miles to seat the rings as best I can before the first oil change.
When I first switched to it on my stock engine shortly after the oil came out (with 300-ish k), it actually changed the sound of the engine. Not only that, but to such a degree my wife noticed and said out loud that the engine sounded different. This is coming from a lady who (despite many other amazing qualities) will drive a car around for 6 months without noticing the brakes doing the old metal-on-metal routine.
The sub-optimal thing with additive bottles in an over the counter oil is that you don't know how much actual concentration is right without sending in a sample of mixed oil. Then, how do you know the additive was completely homogenized into the oil? Often times the instructions on the bottle will have you over-dose it, ZDDP concentration is a diminishing returns scenario, and I have heard (from chemical engineers) that too much can be harmful, though I haven't done my own research on the matter.
'95 2500 ECLB 4x4, 334k and paused due to epic transformation in progress.