I used no fuel additives this time around. Potassium came down to a respectible level. I used 1 qt of Delo CI4+ after the last TP change, could account for slightly elevated Zinc and Phosphorous. I don't know what caused the elevated Vis, could be a fluke. I am not worried, as numbers look good for an engine w/ 27,000 miles
FYI, Previous samples were taken post Frantz filter simply for ease of sample taking. However, this sample was taken pre Frantz, as I have hard tubed my filters with stainless tubing, and it is now easy enough to take tubing loose and sample it.
Any and all comments are welcomed!
Tom
Any and all comments are welcomed!
Tom