The main objective of this research work is to study the effects of the mixture of 84 octane gasoline (84 octane gasohol) and the nanotechnological tablet EF-TABS on the thermal balance of the MAGNUM M8 engine when subjected to load tests and speed in the experimental test bench MEC ENERG 5196 UNT designed and built in the Engine Laboratory of the School of Mechanical Engineering of the National University of Trujillo. After having completed the investigation, the following results can be mentioned: The most outstanding results obtained from this experiment were: 1. The temperature behavior of the Magnum M8 engine fins when 84 octane gasoline + EF-TABS is mixed is at a higher temperature level. As a result, the heat lost by cooling increases (in the air-cooled engine). 2. The behavior of the exhaust gas temperatures of the Magnum M8 engine when mixing 84 octane + EF-TABS gasoline is at a...