<![CDATA[Fuel quality is an important factor influencing motorcycle engine combustion and performance. This study evaluates the effects of Eco-Racing tablets on the octane rating, volatility, and performance of RON 90 gasoline. The fuel was mixed with 1, 2, or 3 tablets per 5 L, and its octane rating and distillation characteristics were assessed using ASTM D2699 and ASTM D86, respectively. Engine performance was evaluated using a dynamometer at 2,000 rpm by measuring power, torque, and fuel consumption. The results showed that the measured octane rating increased from 89.8 to 90.6. Distillation temperatures ranged from 173.0 to 174.4°C, indicating relatively small differences among treatments. Engine power increased from 5.2 to 6.1 HP, while torque increased from 20 to 22.2 Nm. Fuel consumption per unit distance decreased from 0.05 to 0.04 L/km compared with fuel without the additive. Visual inspection also revealed differences in cylinder-head carbon deposits between the control and treated conditions. However, the experiment lacked replication, and deposit assessment was qualitative. Therefore, the results do not establish statistically significant performance improvements or quantify deposit reduction. Further research involving replicated tests, controlled operating conditions, statistical analysis, and quantitative deposit measurements is needed to verify these preliminary findings. Chemical characterization is also required to identify the tablet constituents and clarify their effects on fuel properties.]]>
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