What is the difference between 5w30 and 10w30 engine oil?
1 Answers
5w30 and 10w30 engine oil differences: 1. Lubrication effect varies: 5w30 oil has higher kinematic viscosity, providing better lubrication; 10w30 oil has lower kinematic viscosity, resulting in poorer lubrication. 2. Temperature tolerance differs: 5w30 oil is suitable for temperatures below -18 degrees Celsius; 10w30 oil is suitable for temperatures above -18 degrees Celsius. Engine oil is a frequently encountered substance in vehicle maintenance, often referred to as the 'blood' of the engine. Without engine oil, the engine cannot operate normally. Engine oil performs multiple functions within the engine: lubrication, cleaning, sealing, buffering, rust prevention, and heat dissipation. During engine operation, the oil forms a protective film on component surfaces, preventing direct metal-to-metal contact and friction. As engine oil ages, all its performance characteristics degrade, necessitating regular oil changes.