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
Repair of cars at the expense of the insurer
Very often it happens that entrepreneurs engaged in conducting business in servicing cars decide to start cooperation with the insurer. In this case, they can significantly increase the number of its customers, and the insurer benefits from this by finding the point, which may redirect injured drivers. You have to admit, however, that such work may require, however, significant effort on the part of mechanics and auto electricians, because often repair the car, which is subject to insurance is sudden. Polish roads are often extremely well to many accidents, and then repair the damaged car can be really difficult to carry out.
Checking technical condition of the buses
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.