Posts Tagged: engine wear oil viscosity

Why Thicker Motor Oil Isn’t Better For Your Engine

Oil Viscosity Explained: Thick vs Thin Oil Myths Debunked Quick Summary Thicker oil doesn’t automatically protect your engine better. In fact, there are serious downsides to using an oil that’s thicker than the carmaker’s recommendation. In other words, motor oil viscosity must match the engine design, operating temperature, and oil control, not old-school assumptions. Controlled dyno testing shows that low-viscosity oil versus high-viscosity oil reveals clear trade-offs among friction, power, oil flow, and wear. Thicker oil can reduce wear in some situations, but it can also reduce oil flow, generate … Read More