Passenger Car Gasoline Engine Oil

Lubrication
The main role of passenger car gasoline engine oil is to lubricate the engine parts, which are constantly subject to friction – the main cause of wear on engine parts. Lubricants reduce friction and wear, in turn reducing maintenance costs.

Cooling
During combustion, heat from combustion and friction between mechanical parts each cause engine temperatures to rise. Passenger car gasoline engine oil helps to trap, transfer and release this heat through the lubrication circuit, supplementing the engine coolant, which can only cool certain parts of the engine.

Cleaning
The cleaning power of passenger car gasoline engine oil is fundamental to engine health. Microscopic deposits consisting of dust or combustion residue build up in the engine as it runs. Without passenger car gasoline engine oil , this residue would clog the engine and decrease its performance as the flow of passenger car gasoline engine oil continuously carries these impurities to the oil filter, where they are trapped.

Protection against corrosion
Fuel combustion generates corrosive acids that can damage metal engine parts. The additives within modern passenger car gasoline engine oil s neutralize these acids, reducing the corrosive impact of acids. Nevertheless, when in contact with oxygen, passenger car gasoline engine oil may oxidize over time, no longer playing its corrosion-inhibiting role. That's why you should change your passenger car gasoline engine oil regularly.

Sealing
Passenger car gasoline engine oil also enhances engine sealing, specifically the pistons and cylinders. It does it by forming a protective layer between the various components, sealing any clearances that may arise.