How does multigrade oil work?
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hey mate here's ur answer..........
Hot molasses flows more readily than cold molasses. SAE 10W-30 is a multigrade oil. ... As the engine heats up, the viscosity changes to that of SAE 30. Thus, one type of oil works in all temperatures.......
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you want explanation on short form
Multigrade oil contains special additives. They keep the viscosity of the oil almost constant as the temperature changes.
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