| SAE Viscosity Grades
For Engine Oils(1) |
| SAE Viscosity
Grade |
Low Temperature
(°C) Cranking Viscosity(2), cP Max |
Low Temperature
(°C) Pumping Viscosity(3), cP Max With No Yield Stress |
Kinematic Viscosity(4)(cSt)
at 100°C Min |
Kinematic Viscosity(4)(cSt)
at 100°C Max |
High-Shear Viscosity(5)
(cP) at 150°C and 106 s-1 Min |
| 0W |
6200 at -35 |
60,000 at -40 |
3.8 |
- |
- |
| 5W |
6600 at -30 |
60,000 at -35 |
3.8 |
- |
- |
| 10W |
7000 at -25 |
60,000 at -30 |
4.1 |
- |
- |
| 15W |
7000 at -20 |
60,000 at -25 |
5.6 |
- |
- |
| 20W |
9500 at -15 |
60,000 at -20 |
5.6 |
- |
- |
| 25W |
13000 at -10 |
60,000 at -15 |
9.3 |
- |
- |
| 20 |
- |
- |
5.6 |
< 9.3 |
2.6 |
| 30 |
- |
- |
9.3 |
< 12.5 |
2.9 |
| 40 |
- |
- |
12.5 |
< 16.3 |
2.9 (0W-40, 5W-40, and 10W-40
grades) |
| 40 |
- |
- |
12.5 |
< 16.3 |
3.7 (15W-40, 20W-40, 25W-40,
40 grades) |
| 50 |
- |
- |
16.3 |
< 21.9 |
3.7 |
| 60 |
- |
- |
21.9 |
< 26.1 |
3.7 |
Note-1cP
= 1mPa s; 1 cSt = 1mm2/S
(1) All values are critical specifications as defined by
ASTM D3244.
(2) ASTM D5293
(3) ASTM D4684: Note that the presence of any yield stress
detectable by this method constitutes a failure regardless of viscosity.
(4) ASTM D445
(5) ASTM D4683, CEC L-36-A-90 (ASTM D4741 and D5481)
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