What Is the Difference Between 5W-20 and 5W-30? (2026) – Pros, Cons & When to Use Each
What Is the Difference Between 5W-20 and 5W-30? The main difference between 5W-20 and 5W-30 engine oil is their thickness at operating temperature. Both oils flow the same in cold conditions, but 5W-20 is thinner
