ASTM D7450-08 - 1.5.2008
 
1. Scope

1.1 This specification covers test methods and acceptance criteria for determining the acceptability of gear oils for applications which specify a lubricant meeting the performance requirements of API Category GL-5 service. Lubricants which meet these performance requirements are typically intended for use in automotive axles, particularly those containing hypoid gears, operating under various combinations of high-speed/shock-load and low-speed/high-torque conditions.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

 
2. Referenced Documents

MIL-L-2105D

Lubricating Oil, Gear, Multipurpose

D6121-19ae1

Standard Test Method for Evaluation of Load-Carrying Capacity of Lubricants Under Conditions of Low Speed and High Torque Used for Final Hypoid Drive Axles (Includes all amendments and changes 6/22/2022).

MIL-PRF-2105E

Lubricating Oil, Gear, Multipurpose

MIL-L-2105C

Lubricating Oil, Gear, Multipurpose

D5704-25a

Standard Test Method for Evaluation of the Thermal and Oxidative Stability of Lubricating Oils Used for Manual Transmissions and Final Drive Axles (Includes all amendments and changes 11/7/2025).

D892-25

Standard Test Method for Foaming Characteristics of Lubricating Oils

D130-26

Standard Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test

J306

Automotive Gear Lubricant Viscosity Classification

J2360

Lubricating Oil, Gear Multipurpose (Metric) Military Use

D7452-24a

Standard Test Method for Evaluation of the Load Carrying Properties of Lubricants Used for Final Drive Axles, Under Conditions of High Speed and Shock Loading (Includes all amendments and changes 11/7/2024).

D7038-25

Standard Test Method for Evaluation of Moisture Corrosion Resistance of Automotive Gear Lubricants