Here is the tech sheet; the amounts of zinc and phosphorous in this look to be just about right to get the newer lower ZDDP oils (with 600-800 ppm ZDDP) up to the old standard ZDDP levels in the 1100-1300 ppm range if half of the bottle is added to a standard 5 qt oil volume. https://rislone.com/wp-content/uploads/2014/11/4405-Tech-Sheet.pdf
