C-Oil Engine Oil 5W-30

How does C-OİL 5W30 differ from other oils? 5W30 engine oil has a winter viscosity grade of five, meaning it is less viscous (less thick) at very low temperatures compared to 10W30. It has a viscosity grade rating of 30 in hot environment, meaning it is less viscous at high temperatures than an oil such as 5W50.