What petrol is? Definition by Wikipedia

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Gasoline also known as petrol outside North America, is a transparent, petroleum-derived liquid that is used primarily as a fuel in internal combustion engines.
It consists mostly of organic compounds obtained by the fractional distillation of petroleum, enhanced with a variety of additives. On average, a 42-gallon barrel of crude oil (159 L) yields about 19 US gallons (72 L) of gasoline when processed in an oil refinery, though this can and does vary based on the crude oil source's assay. The characteristic of a particular gasoline blend to resist igniting too early (which causes knocking and reduces efficiency in reciprocating engines) is measured by its octane rating.
Gasoline is produced in several grades of octane rating.
Tetraethyllead and other lead compounds are no longer used in most areas to regulate and increase octane-rating, but many other additives are put into gasoline to improve its chemical stability, control corrosiveness and provide fuel system 'cleaning,' and determine performance characteristics under intended use.
Sometimes, gasoline also contains ethanol as an alternative fuel, for economic or environmental reasons.Źródło: https://en.wikipedia.org/wiki/Gasoline

Is it worth it to seek employment in the garage?

reduce smoke Abarth Servicing cars is very much needed almost every driver. In the event of sudden failure of the car just a phone call to a friendly mechanic to help it through the phone indicate the source of the problem and identify a solution.
However, most often it is necessary to visit a garage.
I must admit that if we go about our work in this profession really honestly, we can even start earning well.
Of course, the most profitable is to conduct your own garage, but working as a mechanic can also be one of the more rewarding physical activity.

For many men, it is also very enjoyable because of the interest in automobiles.

producers of motor oils

Production of motor oils takes place in a massive and mechanized. Manufacturers of motor oils are companies engaged in the production of various unusual substance or substances used typically in cars.
Service production takes a lot of people, from those responsible for creating plans for the composition of specific oils the person responsible for their blending and bottling to packaging.
Pouring motor oil packaging is done using specialized equipment operated by skilled workers. It must be resistant to corrosive chemicals and high temperatures.

Thanks to the efficiency of production is maintained, while the safety of workers..

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