ASTM D4950 - Automotive Service Greases Classification and Specification 

We perform grease quality testing by Specification ASTM D4950, which covers lubricating greases used for automotive chassis systems and wheel bearings.

For additional information on this test method or to purchase a copy of the method, please click HERE to open a new window and visit the ASTM website. 

The following is a list of tests required by Specification ASTM D4950. Some of these tests are customized for this exact specification. Alcor Petrolab and Phoenix Chemical Laboratory specialize in unusual and custom testing, and our testing capabilities are continuing to expand; to discuss the exact testing you need, contact us today. To see more information about one of these tests, click on the test method name below.

Table 1 "L" Chassis Grease Categories

• ASTM D217 - Cone Penetration Test
• ASTM D566 - Dropping Point
  or ASTM D2265 - Grease Dropping Point Test
• ASTM D2266 - Four Ball Lubricity Test
• ASTM D4289 - Rubber "L" Swell Test
• ASTM D1742 - Oil & Grease Separation Test
• ASTM D1743 - Grease Corrosion Prevention Test
• ASTM D2596 - Grease Four Ball Test
• ASTM D4170 - Fretting Wear Protection Test
• ASTM D4693 - Low-Temperature Torque Test

Table 2 "G" Wheel Bearing Grease Categories

• ASTM D217 - Cone Penetration Test
• ASTM D566 - Dropping Point
  or ASTM D2265 - Grease Dropping Point Test
• ASTM D4693 - Low-Temperature Torque Test
• ASTM D1264 - Grease Water Resistance Test
• ASTM D1742 - Oil & Grease Separation Test
• ASTM D1743 - Grease Corrosion Prevention Test
• ASTM D2266 - Four Ball Lubricity Test
• ASTM D3527 - Life Performance of Grease Test
• ASTM D4289 - Rubber "L" Swell Test
• ASTM D4290 - Accelerated Leakage Tendency
• ASTM D2596 - Grease Four Ball Test