Glossary

Engine oil API classification is a system used to classify motor oils according to their performance levels. The API system has two parts: the Service Classification System and the Engine Oil Licensing System

Viscosity modifier is an additive used in lubricants and greases to change their viscosity, or thickness. It is also known as a thickener. Viscosity modifiers are added to oils to make them thicker, which can improve the performance of the lubricant, especially under high-temperature or heavy-load conditions.

The reason is that the light output of a lamp is not generated by electrical power alone, but also by the temperature in the light bulb. The higher this is, the brighter the light becomes. There are different ways to increase the temperature and thus the luminous flux. One possibility…

You should switch on the fog lights not only in fog but generally in poor visibility conditions. This means also during the day when it is snowing or raining and on dark narrow or winding country roads in order to better illuminate the edge of the road.

The low beam is the headlight you turn on at dusk and dawn to illuminate the road ahead. The light reaches about 165 to 197 feet. It gives you better visibility without dazzling oncoming traffic.

Daytime running lights (DRL) are used to illuminate a vehicle in good visibility conditions during the day. On newer vehicles, it switches on automatically with the ignition and switches off as soon as the main lighting (low beam or high beam) is activated.

Combination low beam/ high beam describes a vehicle that uses ONE bulb on each side, with that bulb also functioning as a low beam/ high beam bulb. Such a vehicle will have a total of two separate headlight bulbs, one left and one right.

Fuel injection system - a fuel supply system installed on modern gasoline engines to replace the outdated carburetor system. Engines with this system are called injector engines. In the injector system, fuel injection into the airflow is performed by special injectors located either in place of the carburetor (intake manifold)…

ACEA oil classification is a system used to classify engine oils for automotive use. The system was developed by the Association des Constructeurs Européens d’Automobiles (ACEA), and is widely used in Europe.

Multigrade oil - is an engine or gearbox oil that meets a wide range of SAE viscosity grades and is, therefore, suitable for summer and winter use without oil change at the intervals recommended by the manufacturer.

The oil filter - is a device for cleaning oil from mechanical particles, resins, and other impurities polluting it. The oil filter is installed in the lubrication systems of internal combustion engines.