Should the Highlander use 92 or 95 octane gasoline?
2 Answers
The Highlander should use 92 octane gasoline. Relevant information about gasoline grades is as follows: Gasoline grades: Gasoline grades refer to the octane number, which indicates the anti-knock performance. The higher the grade, the better the anti-knock performance. Octane value of gasoline: Each type of gasoline has a different octane value and anti-knock performance. This is mainly because the higher the engine's compression ratio, the higher the pressure and temperature inside the cylinder, making it more prone to engine knocking. The appropriate gasoline grade for each vehicle depends on its compression ratio. For turbocharged engines, it is recommended to use higher-grade gasoline. Various gasoline grades are actually formulated according to the needs of engines with different compression ratios.
I've been driving the Highlander for several years now, and most of the time I use 92-octane gasoline. The manufacturer's manual clearly states that 92 is sufficient, and there's no need to spend extra on 95 unless you're under extreme driving conditions, such as frequently driving aggressively on mountain roads or long-term high-speed driving. In those cases, the higher octane rating of 95 can slightly reduce the risk of knocking and improve responsiveness, but for city commuting, there's no noticeable difference. 92-octane fuel is significantly cheaper per unit, saving hundreds of dollars a year. Don't be fooled by gas stations into buying more expensive fuel—it's important to consider your budget. The Highlander's engine is designed to be durable, and maintaining regular servicing is more crucial. If you accidentally use the wrong fuel once in a while, it's not a big deal, but consistently using 95-octane is just a waste of resources and increases pollution. The key is to stick to scheduled maintenance, like replacing air filters on time, and maintaining fuel consistency for reliability.
