| 1. | Lubricating oil will do, so will such oil as 3 in 1.
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| 2. | :: : Perhaps the lubricating oil on the gun might catch fire.
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| 3. | This substantially increases the lubricating oil consumption in a four-stroke hydrogen engine.
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| 4. | The connecting-rod seal prevents the fuel from contaminating the bottom-end lubricating oil.
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| 5. | Coal could also be refined to produce lubricating oil, kerosene and natural gas.
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| 6. | It is the necessary lubricating oil for the machinery of a free society.
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| 7. | The rest goes to everything from lubricating oils to asphalt to floor wax.
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| 8. | Samples of oil were taken and after analysis, proved to be lubricating oil.
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| 9. | Fuel, lubricating oil and cooling water were supplied through rotating couplings.
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| 10. | The heavy oils he refined to a quality grade of paraffine lubricating oil.
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