The oil booster wont raise the zinc levels beyond 1600 ppm when used per our instructions. You should have no issues with the catalytic converters, the threshold for those is far far higher. You are good.
posted by TriaxLubricants at 2021-11-02 17:09:30
Zinc levels are not the problem, rather the other part of the ZDDP, the phosphorous is what can poison the catalyst over time at higher levels.
posted by B.D. at 2021-11-28 04:08:36