The Difference Between 10w30 & 10w40
10w30 is a lighter-weight, more viscous oil that has been engineered for use in hot climates where it needs to flow better under high heat. 10w40 is a heavier, less viscous oil designed for cold temperatures where it doesn’t matter how well the engine flows. Key Takeaways What Is 10w30 Oil? 10w30 is a type … Read more