GB13895-2018
Heavy duty gear oils for automobile (GL-5)
重负荷车辆齿轮油（GL-5）
GB 13895-2018 is a current mandatory Chinese national standard for Heavy duty gear oils for automobile (GL-5). It appears in the Auto compliance cluster with a energy efficiency focus and has an implementation date of Feb 1, 2019.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
GB 13895-2018 applies to heavy duty gear oils for automobile (GL-5) formulated from refined mineral oil, synthetic oil, or a mixture thereof, blended with various additives. This standard is mandatory for products primarily used in automotive drive axles, particularly hypoid gears operating under high-speed shock loads, high-speed low-torque, and low-speed high-torque conditions. It categorizes products into 10 viscosity grades, including 75W-90, 80W-140, and 90.
Technical requirements
The standard specifies comprehensive physical and chemical requirements for GL-5 gear oils. Key parameters include kinematic viscosity at 100°C, viscosity index, and apparent viscosity at specific low temperatures. Manufacturers must strictly adhere to the limits for flash point, foaming characteristics, and copper strip corrosion to ensure product reliability. Performance criteria also cover KRL shear stability and thermal-oxidative stability, ensuring the lubricant maintains its properties under severe operating conditions. The standard mandates reporting of elemental contents such as sulfur, phosphorus, nitrogen, and calcium, alongside sulfated ash and pentane insolubles. Furthermore, the standard outlines critical bench testing requirements for rust prevention, load-carrying capacity, and anti-scoring performance. Compliance with these performance benchmarks is mandatory for market access in China, replacing the previous GB 13895-1992 guidelines.
Testing methods
Testing procedures referenced in GB 13895-2018 involve various national and industry methods. Key evaluations include: - Viscosity and low-temperature properties: Tested via GB/T 265 and GB/T 11145. - Shear stability: Evaluated using the KRL 20h test per NB/SH/T 0845. - Chemical composition: Sulfur, phosphorus, and nitrogen contents are determined using methods like GB/T 17040 and NB/SH/T 0704. - Performance benchmarks: Load-carrying capacity (NB/SH/T 0518) and thermal-oxidative stability (SH/T 0520) are critical for compliance.
FAQs
What products are regulated under GB 13895-2018?
GB 13895-2018 regulates heavy duty vehicle gear oils (GL-5) used in automotive drive axles, especially for hypoid gears under severe conditions.
Are there any updates from the previous version of GB 13895?
Yes, compared to GB 13895-1992, the 2018 version expands viscosity grades to 10, updates testing methods for elements like sulfur and phosphorus, and introduces stricter requirements for KRL shear stability and load-carrying capacity.
Is GB 13895-2018 a mandatory standard?
Yes, Chapters 4 and 5 of GB 13895-2018 are mandatory, covering technical requirements and inspection rules, while the rest are recommended.
The summary above provides a high-level overview of GB 13895-2018. To ensure complete compliance for your automotive gear oils entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 13895-2018 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- E34
- ICS
- 75.100
- Competent department
- National Energy Administration
- Technical committee
- National Energy Administration
Relationships
Replaces:GB 13895-1992