Castrol® HD 30 and HD 40

A PREMIUM MONOGRADE OIL FOR WARM CLIMATES

Castrol® HD 30 and 40 are engineered to resist thermal breakdown, so you can drive confidently in warmer temperatures. They are formulated to protect your engine and provide maximum performance for passenger cars and light trucks. Castrol HD 30 should be used in ambient temperatures above 40 degrees Fahrenheit, and Castrol HD 40 performs at its best in temperatures above 60 degrees Fahrenheit.
Benefits of Castrol HD 30 AND HD 40:
  • Exceeds API SM, SL and SJ performance for passenger cars and light trucks
  • Formulated to surpass exceed the engine protection requirements for Ford ESE-M2C153 G and F, GM 6085M, Chrysler MS-6395M
  • Provides maximum wear protection in warm climates
  • Use HD 40 when ambient temperature is above 60 degrees F