It is generally not recommended to use old or used engine oil in a new bike, including a Royal Enfield motorcycle. Here's why:
Contamination: Used engine oil can contain contaminants such as dirt, metal particles, and combustion byproducts that can be detrimental to the engine's performance and longevity. These contaminants can cause increased friction, wear, and damage to engine components.
Reduced Lubrication Properties: Engine oil undergoes degradation over time and use. Its lubricating properties deteriorate, and it may not provide adequate protection to the engine in terms of lubrication and heat dissipation. Using old oil in a new bike can compromise the engine's performance and increase the risk of premature wear.
Manufacturer Recommendations: Royal Enfield, like other motorcycle manufacturers, provides specific recommendations for engine oil in their owner's manual. It is advisable to follow these recommendations to ensure optimal performance, fuel efficiency, and longevity of the engine. Using the recommended grade and type of engine oil specified by the manufacturer is generally the best practice.
When it comes to oil changes for a new bike, it is recommended to follow the manufacturer's guidelines and replace the initial oil with fresh, high-quality engine oil of the appropriate grade and specification. This helps to ensure that the engine is properly lubricated, protected, and maintained in good condition from the beginning of its life cycle.
If you have concerns or questions about oil selection or maintenance for your specific Royal Enfield model, it is best to consult the owner's manual or reach out to an authorized Royal Enfield dealership for accurate and up-to-date information.