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8420
In addition to lubricating (reducing friction between moving parts), engine oil performs what functions?
| 1. |
Cools. |
| 2. |
Seals. |
| 3. |
Cleans. |
| 4. |
Prevents corrosion. |
| 5. |
Cushions impact (shock) loads. |
| | A) 1, 2, 3, 4. |
| | B) 1, 2, 3, 4, 5. |
| | C) 1, 3, 4. |
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