What are the effects of oil with too high viscosity?

[LeJohnny]

The effects of oil with too high viscosity include: 1. Difficult cold starts for the vehicle, as high oil viscosity combined with low ambient temperatures results in slow oil circulation, poor lubrication, and increased engine component wear; 2. Higher oil viscosity leads to slower circulation within the engine and fewer passes through the filter, resulting in poor cleaning performance; 3. High oil viscosity reduces fluidity, thereby diminishing cooling effectiveness; 4. Increased oil viscosity raises friction between engine components, leading to greater wear and power loss, which reduces the engine's effective output.