This standard specifies the requirements and test methods, inspection rules, marking, packaging, transportation and storage of heavy duty gear oils for automobile (GL-5), which adopts refined mineral oil or synthetic oil or both as the base oil by mixing with various types of additives.
It applies to heavy-duty gear oils for automobile (GL-5). This product is mainly suitable for automotive drive axles, especially suitable for hypoid gears used in high-speed impact loads, high-speed low-torque and low-speed high-torque conditions.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 260 Test method for water in petroleum products - Distillation method
GB/T 265 Petroleum products - Determination of kinematic viscosity and calculation of dynamic viscosity
GB/T 511 Petroleum products and additives - Method for determination of mechanical admixtures
GB/T 1995 Petroleum products - Calculation of viscosity index
GB/T 2433 Petroleum products - Lubricating oils and additives - Determination of sulphated ash
GB/T 2541 Petroleum products - Computation table for viscosity indices
GB/T 3535 Petroleum products - Determination of pour point
GB/T 3536 Petroleum products - Determination of flash and fire points - Cleveland open cup method
GB/T 4756 Petroleum liquids - Manual sampling
GB/T 5096 Petroleum products - Corrosiveness to copper - Copper strip test
GB/T 8926 Standard test method for insolubles in used lubricating oils
GB/T 11140 Standard test method for sulfur in petroleum and petroleum products by wavelength dispersive X-Ray fluorescence spectrometry
GB/T 11145 Automotive fluid lubricants - Determination of low-temperature viscosity - Brookfield viscometer method
GB/T 12579 Determination of foaming characteristics of lubricating oils
GB/T 17040 Standard test method for sulfur in petroleum and petroleum products by energy dispersive X-Ray fluorescence spectrometry
GB/T 17476 Standard test method for determination of additive elements, wear metals, and contaminants in used lubricating oils and determination of selected elements in base oils by inductively coupled plasma atomic emission spectrometry (ICP-AES)
