Industrial Lubricants

SAE Viscosity of Automotive Gear Oils - SAE J306 Jan 2005

Automotive Lubricant Viscosity Grades Gear Oils - Except SAE J 306, 1998      
SAE Viscosity
Grade
Maximum Temperature
for a viscosity of
150,000 cP (°C
Minimum Viscosity
at (cSt) a 100°C
Maximum Viscosity
at (cSt) a 100°C
ASTM D 2983 ASTM D 445 ASTM D 445
70W -55 4.1 --
75W -40 4.1 --
80W -26 7.0 --
85W -12 11.0 --
80 -- 7.0 <11.0
85 -- 11.0 <13.5
90 -- 13.5 <18.5
110 -- 18.5 <24.0
140 -- 24.0 <32.5
190 -- 32.5 <41.0
250 -- 41.0 --

1 - Using ASTM D 2983, additional low temperature viscosity requirements may be appropriate for fluids intended for use in light-duty synchronized manual transmission.

2 - Limit must also be met after testing in CEC l-45-T-93, Method C (20 hours)

3 - The precision of ASTM D 2983 has not been established for determinations made at temperatures below -40 °C. This fact should be taken into consideration in any producer-consumer relationship