Posted by 4play on October 06, 2017 at 23:13:26 from (70.215.210.197):
In Reply to: Lack of Zinc in oil posted by Mike Groom on October 06, 2017 at 16:36:08:
There are millions of "older" engines that are staying alive long after they started cutting zinc out of engine oils around the mid 1990's ZDDP has been reduced from engine oils for a real long time now. Also how much is in the oil you use and how much additive are you going to put in? Too much can do more harm than good.
Most, not all diesel rated oils have more ZDDP but not what it used to have 20 years ago. Racing oils or "off road" oils usually have more too. Whether you think you need it or not, why not consider better oil products like both synthetic and high mileage.
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