Oil Types & Viscosity Comparisons
5W-30 vs. 5W-20: What Happens If You Use the Wrong Viscosity?
5W-30 vs. 5W-20: using the wrong viscosity grade isn't immediately dangerous but causes real long-term wear. Here's what changes and when it matters.
Viscosity Grade
Oil Types & Viscosity Comparisons
0W-20 vs. 5W-30: The Damage You Risk by Using the Wrong One
0W-20 vs. 5W-30: your owner's manual has the answer. Here's why modern engines specify 0W-20, when 5W-30 is correct, and what goes wrong if you deviate.
Motor Oil Basics & Label Reading
What Is Viscosity Grade? Decoding 5W-30 (And Why It's Easy to Get Wrong)
What is viscosity grade? It's the SAE standard for how oil flows at cold and hot temperatures. Here's how the grading system works and how to read it.
Motor Oil Basics & Label Reading
How to Read a Motor Oil Label: API, SAE & ILSAC Explained
Motor oil labels carry six pieces of information — most drivers decode one. Here's what SAE viscosity, API SP, ILSAC GF-6A, and the rest actually mean.
Motor Oil Basics & Label Reading
How to Choose the Right Motor Oil for Your Car
Learn how to choose motor oil using your owner's manual, SAE viscosity grades, and API specs. Includes a selection table for all vehicle types.
Motor Oil Basics & Label Reading
Engine Oil Viscosity Explained: What 0W-20 Actually Means
0W-20, 5W-30, 10W-40: the numbers on your oil cap follow a specific system. Here's what each part means, why it matters, and how to read it.
Motor Oil Basics & Label Reading
Does It Actually Matter What Motor Oil You Use?
Does it matter what oil you put in your car? Viscosity grade matters a lot. Brand matters much less. Here's exactly where the line falls.