Additives: Car oils and motorcycle oils also contain different additives. Motorcycle oils typically contain more anti-wear additives to protect the gears and other components of the motorcycle engine. They also contain more detergents and dispersants to keep the engine clean and free of sludge.
Viscosity: The viscosity of an oil is a measure of its resistance to flow. The higher the viscosity, the thicker the oil. Car oils and motorcycle oils are both available in a variety of viscosities, but motorcycle oils typically have lower viscosities than car oils. This is because motorcycle engines operate at higher temperatures than car engines and need an oil that can flow more easily.
Shear stability: Shear stability is a measure of an oil's ability to resist thinning under stress. Motorcycle oils typically have higher shear stability than car oils because they are subjected to more stress in the motorcycle engine.
Compatibility: Car oils and motorcycle oils are not always compatible with each other. It is important to check the owner's manual of your motorcycle to find out what type of oil is required. Using the wrong type of oil can damage the motorcycle engine.
In general, car oils are not as good as motorcycle oils for motorcycles. Motorcycle oils are specifically designed for the unique requirements of motorcycle engines. If you are unsure of what type of oil to use in your motorcycle, consult the owner's manual or a qualified mechanic.