Engine : Expired / General Subjects - 1628/881
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| Elevated metal levels present in a recent sample of used diesel engine crankcase lubricating oil is indicative of a condition. What would high silicon levels indicate? |
| A) The lubricating oil has become contaminated with sand, dust, and dirt. |
| B) The lubricating oils detergent additives have become depleted. |
| C) The lubricating oil has become contaminated with engine coolant. |
| D) The lubricating oil has become excessively diluted with fuel oil. |
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