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Paraffin base crude oil as compared to asphalt base crude gives
__________ base crude oil is also called asphaltic crude.
Crude petroleum oil is a __________ fuel.
Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its
Sour crude means the __________ bearing crude.