reduce smoke Morgan Definition of oil
An oil is any neutral, nonpolar chemical substance that is a viscous liquid at ambient temperatures and is both hydrophobic (immiscible with water, literally "water fearing") and lipophilic (miscible with other oils, literally "fat loving"). Oils have a high carbon and hydrogen content and are usually flammable and slippery.
The general definition of oil includes classes of chemical compounds that may be otherwise unrelated in structure, properties, and uses. Oils may be animal, vegetable, or petrochemical in origin, and may be volatile or non-volatile. They are used for food, fuel, lubrication, and the manufacture of paints, plastics, and other materials. Specially prepared oils are used in some religious ceremonies as purifying agents
Źródło: https://en.wikipedia.org/wiki/Oil
Oil from plants
Organic oils are produced in remarkable diversity by plants, animals, and other organisms through natural metabolic processes. Lipid is the scientific term for the fatty acids, steroids and similar chemicals often found in the oils produced by living things, while oil refers to an overall mixture of chemicals. Organic oils may also contain chemicals other than lipids, including proteins, waxes (class of compounds with oil-like properties that are solid at common temperatures) and alkaloids.
Lipids can be classified by the way that they are made by an organism, their chemical structure and their limited solubility in water compared to oils. They have a high carbon and hydrogen content and are considerably lacking in oxygen compared to other organic compounds and minerals; they tend to be relatively nonpolar molecules, but may include both polar and nonpolar regions as in the case of phospholipids and steroids
Źródło: https://en.wikipedia.org/wiki/Oil
Vehicles used to work in the countryside
While working in the country are used for a variety of motor vehicles, from ordinary cars to large combines. In view of the common agricultural vehicles sold cheap motor oils suitable for use in such devices, which must primarily operate smoothly, but also their owners depend on that to serve them as long as possible. Simple repair of agricultural vehicles can be made by their owners, and it is the most practical way to restore the ability of such vehicles to carry out their work at a time when farmers do not wish for too long lose access to their machines. Sometimes, however, they happen in these larger faults that need to be repaired in the service dealing with agricultural machinery.