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 |
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