Introduction
SAE viscosity grades
Engine Oil
Gear Oil
Break Fluid
211.0 SAE viscosity grades of engine/gear oils
Engine oil
– SAE J300, revised April 2013
(only an extract, original standard available at http://standards.sae.org)
| SAE- viscosity classes |
Low-Temperature (°C) Cranking Viscosity (ASTM D 5293) (mPa s) max. |
Low-Temperature (°C) Pumping Viscosity(ASTM D 4684) (mPa s) With no yield stress max. |
Low-Shear-Rate Kinematic Viscosity (ASTM D 445) (mm2/s) At 100 °C |
High-Shear-Rate Viscosity (ASTM D 4683, CEC L-36-A-90 (ASTM D 4741), ASTM D 5481) (mPa s) s For 150 °C and 106s-1 min. |
|
| min. | max. | ||||
| 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 | 13,000 at – 10 | 60,000 at – 15 | 9.3 | – | – |
| 16 | – | – | 6.1 | < 8.2 | 2.3 |
| 20 | – | – | 6.9 | <9.3 | 2.6 |
| 30 | – | – | 9.3 | <12.5 | 2.9 |
| 40 | – | – | 12.5 | <16.3 | 2.9 (0W-40, 5W-40, 10W-40) |
| 40 | – | – | 12.5 | <16.3 | 3.7 (15W-40, 20W-40, 25W-40, 40) |
| 50 | – | – | 16.3 | <21.9 | 3.7 |
| 60 | – | – | 21.9 | <26.1 | 3.7 |
Gear oils
- SAE J 306, 2005 extract
| Automotive Gear Lubricant Viscosity Classification | |||
| SAE Viscosity Grade | Max. Temperature for Viscosity of 150,000 cP (°C)1.) | Kinematic viscosity at 100 °C (cSt) Using ASTM D 445 |
|
| min. | max. | ||
| ASTM D 2983 | ASTM D 4452.) | ASTM D 445 | |
| 70W | − 553.) | 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 | − |
- Using ASTM D 2983, additional low-temperature viscosity requirements may be appropriate for fluids intended for use in light-duty synchronized manual transmission
- Limit must also be met after testing in CEC l-45-T-93, Method C (20 hours)
- 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.
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