車用機油 SAE 黏度標準 (J300 Dec 99) |
SAE黏度等級
| 低溫黏度
| 高溫黏度
| 低溫(at °C)曲動最高黏度2 (cP)
| 低溫(at °C)泵動最高黏度3 (cP)
| 100°C動力黏度4 (cSt)
| 150℃高溫高剪切最低黏度5(cP)
| 最低
| 最高
| 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
| 13,0000 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, 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
|
備註: 1 Cp=1 mPa's; 1 cSt=mm2s-1
1.詳細規範請參照ASTM D 3244
2.ASTM D 5293 (即簡稱為CCS黏度)
3.ASTM D 4684(see also appendix B and text section 4.1):The presence of any yield stress detectable by this method constitutes a failure regardless of viscosity.
4.ASTM D 445
5.ASTM D 4683, ASTM D 4741, CEC-L-36-A-90
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