Is military omd 90 oil for a 4 stroke motorbike petrol engine ok?

Using military OMD 90 oil in a 4-stroke petrol motorcycle engine is not recommended. OMD 90 is typically a lubricant designed for military specifications and may not match the required viscosity or additive package for motorcycle engines. It's essential to use oil specifically formulated for motorcycles to ensure proper engine performance and longevity. Always refer to the manufacturer's recommendations for the best oil type.