Posts Tagged: oil shear

Oil shear and viscosity

Understanding how oil shear affects oil viscosity Oil shear is a phenomenon where motor oil undergoes mechanical stress and thermal degradation. When subjected to extreme forces and temperatures within an engine, the oil’s viscosity decreases, and it loses important additives. These changes can impair the oil’s protective qualities, potentially leading to accelerated engine wear, lower fuel economy, and diminished overall performance. This article explains how oil shear happens in your engine and the long-term consequences of driving on that degraded oil. Oil viscosity basics Fact 1) All oil (motor oil, … Read More