Oil - not only for cooking
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
What do you do when your car refuses to obey?
A fault in the car? Many of us certainly can independently deal with such problems. But there will always be a good solution? When to take a self-repair, and that time should be avoided? In this way we can handle ourselves only when we are fully confident of our ability. In another case, often we will cause yourself more damage than good, and yet each of us to save time and money. So when we break down the car much better and safer to have it repaired at a certified workshop, which will provide us with the highest quality of service and efficient repair. Thanks to often avoid a lot of trouble, and in addition we will soon be able to enjoy our car, which allows us to increase flexibility.
Allowing buses to transport passengers
Allowing buses to carry passengers takes place after checking their technical condition. Inspection of road traffic requires that all vehicles that are to serve as vehicles for collective are fully operational and ensure the safety of passengers. Servicing buses should take place after the establishment of any problems with the vehicle, which can occur while driving or be determined at a standstill. Due to the fact that in Poland passenger transport by buses organized frequently by private carriers, who must themselves cover the costs of buying new vehicles, they try to take care of their vehicles so that they can ride as long as possible. One way to prolong the life of vehicles is a frequent replacement of engine oil.