Just wondering, what is the most important specification or technical data that you consider when choosing a grease product?
Is it manufacturer recommendation?
Is it the NLGI GC-LB certification?
Moly content?
or out of the list of tests that appear on most product data sheets which ones are the most important?
Appearance
Thickening Agent
Worked Penetration (60 Strokes - mm/10) D217
Penetration Loss after 10 000 Strokes D217
Dropping Point (°C) D2265
Oil Separation (% Loss) D1742
BASE OIL PROPERTIES
Viscosity @ 40°C (cSt) D445
Viscosity @ 100°C (cSt) D445
Viscosity Index D2270
Specific Gravity D1298
Density @ 20°C (g/mL) D1298
Pour Point (°C) D97
PERFORMANCE TESTING
Operating Temperature Range
Timken OK Load (kg) D2509
4 Ball EP - Load Wear Index D2596
4 Ball EP - Weld Point (kgf) D2596
4 Ball Wear (mm) D2266
Water Washout % Loss (@79°C/175°F) D1264
Wheel Bearing Leakage (g Loss) D4290
Low Temperature Torque (Nm@ -40°C) D4693
Corrosion Prevention D1743
Oxidation Stability (PSI Loss@ 100 hrs) D942
Bearing Life D3527
Me I typically look at Oil Separation (D1742) Water washout (D1264), Dropping point (D1742) and Low Temperature Torque (D4693) and the 4 Ball results. Not all these are included on every data sheet so it makes comparison a little tough some times.
Anybody else have thoughts?
Is it manufacturer recommendation?
Is it the NLGI GC-LB certification?
Moly content?
or out of the list of tests that appear on most product data sheets which ones are the most important?
Appearance
Thickening Agent
Worked Penetration (60 Strokes - mm/10) D217
Penetration Loss after 10 000 Strokes D217
Dropping Point (°C) D2265
Oil Separation (% Loss) D1742
BASE OIL PROPERTIES
Viscosity @ 40°C (cSt) D445
Viscosity @ 100°C (cSt) D445
Viscosity Index D2270
Specific Gravity D1298
Density @ 20°C (g/mL) D1298
Pour Point (°C) D97
PERFORMANCE TESTING
Operating Temperature Range
Timken OK Load (kg) D2509
4 Ball EP - Load Wear Index D2596
4 Ball EP - Weld Point (kgf) D2596
4 Ball Wear (mm) D2266
Water Washout % Loss (@79°C/175°F) D1264
Wheel Bearing Leakage (g Loss) D4290
Low Temperature Torque (Nm@ -40°C) D4693
Corrosion Prevention D1743
Oxidation Stability (PSI Loss@ 100 hrs) D942
Bearing Life D3527
Me I typically look at Oil Separation (D1742) Water washout (D1264), Dropping point (D1742) and Low Temperature Torque (D4693) and the 4 Ball results. Not all these are included on every data sheet so it makes comparison a little tough some times.
Anybody else have thoughts?