The study analyzed the use of bioethanol-pertalite mixtures in motorcycles to improve fuel efficiency. Different mixtures of bioethanol and pertalite were tested at various engine speeds. Results showed that at lower engine speeds, using bioethanol in the mixture led to less fuel consumption compared to using pure pertalite. At higher engine speeds, the fuel consumption was more efficient with bioethanol-pertalite mixtures than with pure pertalite. This suggests that incorporating bioethanol into fuel blends could help reduce fuel consumption in motorcycles.