Should the Tianjian 150 use 92 or 95 octane gasoline?
2 Answers
The Tianjian 150 should use 95 octane gasoline. Below is relevant information about gasoline: Anti-knock property: The property that measures whether a fuel is prone to knocking is called anti-knock property. The anti-knock property of gasoline is indicated by the octane number (RON). The higher the octane number of gasoline, the better its anti-knock property. For hydrocarbons of the same family, those with smaller carbon numbers have better anti-knock properties and higher octane numbers. Cleanliness: Gasoline often contains mechanical impurities and water. Mechanical impurities can cause serious consequences such as clogged fuel lines and increased wear. Water mixed into gasoline can accelerate the oxidation of gasoline and form acidic aqueous solutions with low-molecular-weight organic acids in gasoline, corroding metals. At low temperatures, it can easily freeze and form ice particles that clog fuel lines.
I've been riding the Tianjian 150 for several years and found that using 92-octane gasoline is very cost-effective. The engine design is moderate with a not-so-high compression ratio, making 92-octane sufficient for daily commuting. Although 95-octane has higher octane and better anti-knock properties, it's significantly more expensive—the few cents difference per liter adds up over time. The money I save goes towards better engine oil maintenance, keeping the engine just as smooth. The key is to find reputable gas stations to ensure fuel quality isn't subpar. During summer long rides, I consider using 95-octane to prevent overheating. Overall, 92-octane offers great value for money, and there's no need to spend extra unless the manual specifically requires it. Remember to regularly check the spark plugs and air filter, as these have a bigger impact on engine performance. In short, based on experience, 92-octane is perfect for regular riding—no need to overcomplicate things.
