The reduction of zinc and phosphate additives in passenger car oils and its impact on the premature wear of cams and lifters have been well documented in recent years.
A number of products are on the market from complete fill “break in” and racing oils to additives with various levels of Zinc Phosphate content with some products priced out of many buyers reach.
Crow has researched with oil additive manufacturers the optimum level of ZDDP for maximum resistance to scuffing and oil film break down under the extreme loads of high performance flat tappet engines in road and race applications.
Crow’s new Dura Cam ZDDP Ultra Concentrate is designed as a one shot oil additive with the 100ml bottle (pictured) bringing Zinc Phosphate levels on 5 to 6 litres of engine oil into the maximum recommended parts per million range.
Dura Cam part number ZDDP-100 is available for purchase on line and priced under $18 a bottle is great insurance for any high performance road or race flat tappet engine.