Schaeffer Ultra Red Supreme Grease #229 is a synthetic blend, multi-purpose extreme pressure grease. Toting outstanding water resistance and rust inhibiting attributes, Ultra Red Supreme protects equipment performing under extreme pressure, cold, moisture and high and low speed conditions. With an operating temperature of -20 to 350 degrees Fahrenheit, Ultra Red Supreme is excellent for use in in all types of heavy duty automotive, industrial, farming, construction and mining equipment. Please note that due to its superior cohesive and adhesive properties, however, Ultra Red is not recommended for use in passenger car automotive wheel bearing applications.