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Optimus 92 Ltd.
Huszár Gál utca 54
Tax number: 11143110-2-09
HBM registry court :0909001848
Opening hours: Monday to Friday: 8.00-16.30
Closed: Saturday - Sunday
Márta Makláriné Berczi
Motor vehicle, utility truck, industrial lubricants
Motor vehicle, utility truck
Utility truck, industrial lubricants
Tel: 06/30 3499151
Tel: 06/30 6776900
Tel: 06-30 6284399
These grades are defined as follows:
ˇ a winter grade, followed by the letter W, 15W for example
ˇ a summer grade, this figure comes after the winter grade, 40 for example
The smaller the winter grade number (0W, 5W, 10W, 15W, 20W, 25W) the more the oil remains fluid at low temperatures, and therefore the easier it is to start the engine in very cold weather.
The higher the summer grade number (20, 30, 40, 50, 60 the more the oil remains viscous at high temperatures (100°C), and therefore the more protection it provides to the motor during strenuous use. Present day engines are designed to operate with a hot oil viscosity of SAE 40. In winter, a cold grade of SAE 15W is ample to provide starting without problems. An oil of SAE 15W-40 is therefore suitable for temperatures ranging from -10°C to +40°C. (refer to the vehicle manufacturer's exact recommendations).
Is that shows a problem when your vehicle or your four-stroke use engine-oil?
All the motors use some engine-oil even if the oil level doesn't decrease observably, scil. in the course of the function, different substances augment the cubic capacity of the engine-oil, p.e.: different concreted pollutions, propellants, etc.