| 21. | It is also considered by some to be a good additive to engine oil.
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| 22. | The prototype was to have persistent problems with engine oil leaks and poor cooling.
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| 23. | The carbon arises from the excessive heating of engine oil or from incomplete combustion.
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| 24. | The only carbon byproducts come from trace amounts of engine oil consumed during combustion.
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| 25. | Some operators even ran engines on used engine oil, thus providing almost free power.
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| 26. | Projek Lebuhraya Utara-Selatan workers washed away the spilled engine oil.
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| 27. | The engine oil tanks were in the engine nacelles.
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| 28. | Also new is the centrally mounted engine oil cooler.
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| 29. | We will clean this engine oil, before it precipitates,
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| 30. | It can cause a marked increase in engine oil carry-over out the crankcase ventilation system.
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