ZDDPlus is an oil supplementthat contains very high concentrations of the well-known additive ZDDP (ZincDialkyl Dithiophosphate), which has been the primary EP (extreme pressure)ingredient in all quality motor oils for over 70 years. However, beginning inthe late 1980s, the concentration has been greatly reduced as newer oilclassifications have come on the market. ZDDPlus is the ONLY EP (ExtremePressure) component which re-establishes the ZDDP levels that classic carengines were designed for, while allowing the car owner to use the base oil oftheir choice. ZDDPlus also alters bearing and journal surface characteristicsto prevent metal to metal contact. Under extreme conditions like a high performancemotor, ZDDP reduces the tendency of parts to scuff or gall under heavy loads.While some off-the-shelf additives may have some ZDDP but the amount per bottleis small. ZDDPlus is not a typical oil additive. It is compatible with allconventional and synthetic oils intended for automotive use. By adding a small4 ounce bottle of it at every oil change, an adequate amount of Zinc andPhosphorus will continue to protect your engine.
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