Both crosshead type and trunk type lubricating oil are received onboard a vessel. These two oils cannot be interchanged due to which of the following reasons?

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Crosshead type lubricating oil has a lower base number as it does not need to neutralize the combustion by-products

Answer

Trunk type lubricating oil has a higher flash point

Answer

Crosshead type lubricating oil has a lower pour point

Answer

Crosshead type engine oil scraper rings are designed for a certain oil type

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