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'''Oil''' is a general term used for substances which | |||
*are liquid at room temperature | |||
*do not mix with water | |||
*will mix with other oils | |||
Important categories of oils include | |||
*[[Petroleum]] | |||
*[[Vegetable oils]] | |||
Various types of oils are used for many different purposes | |||
*As [[Food|food]] and for [[Cooking|cooking]] | |||
*As [[fuel]] in [[internal combustion engine]]s and [[Diesel]] engines | |||
*As machine [[lubricant]]s | |||
*[[Personal care products]] | |||
Petroleum is considered a [[non-renewable resource]]. | |||
There is currently great interest in using vegetable oils as an alternative fuel source. | |||
Oils are generally flammable and care must be taken to avoid accidentally igniting. | |||
==See also== | |||
*[[Biodiesel]] | |||
*[[Fat]] | |||
*[[Fixed Oils and Animal Fats]] | |||
[[Category:Energy]] | |||
[[Category:Food and agriculture]] | |||
[[Category:Stubs]] | |||