An energy expert from Padjadjaran University, Yayan Satyakti, predicts that approximately 10 percent of Pertamax (RON 92) consumers in Indonesia will switch to Pertalite following recent price increases. This shift is anticipated as consumers seek more affordable fuel options. The prediction reflects a sensitivity to price changes within the Indonesian gasoline market. Pertamax is a higher-octane fuel, while Pertalite is a subsidized, lower-octane alternative. The expert’s assessment suggests a potential impact on demand for both fuel types. Further analysis will be needed to determine the full extent of the consumer response to the price adjustments.