Heavy duty gear oils for automobile Petroleum oils and oils obtained from bituminous minerals, other than crude; preparations not elsewhere specified or included, containing by weight 70% or more of petroleum oils or of oils obtained from bituminous minerals, these oils being the basic constituents of the preparations; waste oils. (HS 2710). Lubricants, industrial oils and related products (ICS 75.100).

National Standard of the P.R.C., Heavy duty gear oils for automobile (GL-5) (9 page(s), in Chinese)

The standard regulates on Heavy duty gear oils for automobile (GL-5) which is blend of base stock made by refined mineral oil, synthetic base stock or their mixture and various additives. The standard specifies related test methods, inspection rules, marking, packaging, transportation and storage requirements. The standard is mainly applicable to automotive axles, particularly the hypoid gears operated under the condition of high-speed/shock-load, high-speed/ low-torque and low‑speed/high-torque.