What Do the Numbers on Engine Oil Mean? The Ultimate Viscosity Guide
If you’ve ever walked down the automotive aisle or looked at a bottle of Winner Lubricants, you’ve seen prominent codes like 5W-30, 10W-40, or 0W-20. To the untrained eye, these numbers look like a confusing math equation. However, understanding exactly what these numbers mean is the single most important factor in keeping your engine running smoothly, preventing wear, and maximizing fuel efficiency. Let’s break…
