ZDDP Oil Additive - Zinc & Phosphorus 5 Pack
Creates an anti-wear layer at friction points to prevent metal-to-metal contact and eliminate wear. Engine break-in where the new camshaft and lifters need extra protection, and ZDDP is perfect for that. Mandatory for all flat tappet engines. Works in both synthetic and standard mineral-based oils. Two fluid ounces mixed with 6 quarts of oil create a ratio of 3000 – 3200 parts per million (ppm). ZDDP protects high-load components from excessive wear and failures. Use in every oil change for maximum protection.