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Frequently Asked Questions


The fuels used for internal combustion engines are gasoline and diesel. Usually, fuel is obtained from petroleum distillation and in order to be used in vehicles, they must be as pure as possible (without any solid impurities). Fuels based on gasoline have specific densities and different octane rating or numbers:
  • Regular gasoline (91 RON)
  • Super (95 RON)
  • Super Plus (98 RON)
  • RON stands for "research octane number" and represents the standard rating for fuel performance (vehicles and aircrafts). The higher the octane rating, the more compression the fuel can withstand and can be used on high-compression engines. Diesel fuel is obtained from petroleum distillation between 180°C and 380°C. The quality and the properties of gasoline and diesel are determined by the additives they have in their composition. Among other things, these chemical additives ensure storage stability, high detonation resistance and anti-corrosion properties. When it comes to the additives that are found in diesel fuel, they improve fluidity in temperatures below the freezing point and prevent the occurrence of ice crystals on the car's throttle. When using catalysts, it is mandatory to use unleaded fuel.