ACDelco Nickel Anti-Seize Lubricant is a high temperature, high quality, heavy duty, lead-free lubricant that resists galling and corrosion and reduces wear in heavy pressure applications. It is recommended for use where copper contamination must be avoided. This product also performs well under conditions of extreme pressure and temperature. ACDelco Nickel Anti-Seize Lubricant is designed specifically for use with stainless steel, titanium, and nickel alloys. This product should not be used on oxygen sensors.