Because what the engine is basically doing is burning stuff, and when you burn something you usually get soot and some ashes. Some of that soot gets trapped int he oil, and is what makes it black.
Yes. They get sucked into black holes all the time!
Heavier oil is best used during the warmer parts of the year. While thinner oil is best used during winter, as thick oil may become too sluggish in the cold.
It is important to maintain a car while driving or owning one. When a car's exhaust is spitting out black deposits, it is because there is oil in the system where it does not belong.
I'm guessing nothing the oil just sits on top of the water and chemicals are used to make the oil dissolves. Like BP oil spill
Oil is called Black oil because it is really valuable and you use it for many things it is for some people really like thy found Gold. So it is called Black Gold
No, you become a convict.
black
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Baby oil is not an oil that can be used to whiten black underarms. There are oils you can use in a mixture, such as, olive oil, vitamin E oil, and coconut oil.
Oil turns black due to carbonation and absorption of dirt. It has to be changed. If the question refers to automatic transmission oil, then carbonation, dirt and worn out clutch plate particles turns oil in to black.
Not really. Petroleum can be a lot of stuff that comes from black oil pumped out of the ground, while petrol is only the part(made from oil) that can be used to run cars and similar engines.
interdependence is when one country's well being depends on the cooperation of another country. they become interdependent when they realize there are economic gains in trade. One state may have too many cars, but not enough oil; while another state has too much oil buy not enough oil. These countries can become interdependent and each will have enough oil and cars.