
The Avalon uses 92 octane gasoline. 92 octane gasoline refers to fuel with an octane rating of 92 and heptane content of 8. The Avalon is a mid-size sedan under FAW Toyota. The 2021 models are all equipped with a 2.5L naturally aspirated engine, 8-speed automatic transmission, and have an NEDC combined fuel consumption of 6.2L/100km. Correct method for selecting gasoline grade: Check the sticker inside the fuel filler cap. The inside of the car's fuel filler cap always has a (recommended standard) sticker, which is the most accurate and scientific standard calculated by engineers based on comprehensive engine technical parameters; The vehicle's owner's manual usually provides clear regulations and explanations. Hazards of using wrong gasoline: Higher octane gasoline isn't necessarily better. If a high-compression engine uses low-octane gasoline, it may cause incomplete combustion, severe engine vibration, reduced power output, component damage, increased fuel consumption, and weak driving performance. Conversely, if a low-compression engine uses high-octane gasoline, it may cause delayed combustion - meaning the compression ratio reaches its peak before reaching the auto-ignition point, also resulting in incomplete combustion. This requires additional fuel injection to ensure power output, which not only offers no benefits to the engine but also increases fuel consumption.

I've been driving the Avalon for many years, and the manual recommends 92 octane gasoline. The engine is designed to run perfectly fine on 92, which is both worry-free and cost-effective. Using 95 octane is slightly more expensive, costing a few cents more per liter, adding up to a significant expense over a full tank. In the long run, sticking with 92 can save a lot. Honestly, there's not much difference in performance; the engine might sound a bit quieter with 95, but the acceleration response is almost identical. Some people worry that 92 isn't enough, but that's completely unnecessary. I've personally driven it in both city and highway conditions without any issues, and the fuel consumption is reasonable. Just a reminder: don't mix in lower octane fuels like 80, as it could damage the engine. Follow the manual—92 is the most economical and practical choice. Don't let the gas station upsell you into spending more. From an environmental perspective, 92 also has lower emissions.

The octane level of gasoline affects its anti-knock properties. 92-octane fuel meets the engine requirements of the Asian Dragon (Camry), as its compression ratio is not high enough to necessitate 95-octane. While 95-octane has a slightly higher octane rating and may prevent minor knocking under high temperatures, its impact on daily driving is negligible. The slight power boost from using 95-octane is minimal, yet it increases costs by dozens of yuan per tank, making it cost-ineffective. It is recommended that owners follow the manual and use 92-octane to ensure engine longevity, avoiding unnecessary performance expenditures. Additionally, maintaining a consistent fuel grade helps prevent damage to the fuel injection system from frequent switching.

The Asian Dragon runs most economically on 92-octane fuel, while 95-octane is significantly more expensive with similar power output. I drive smoothly with 92-octane, with quick starts and no issues during highway overtaking. Saving money is important, and spending the extra cash on practical accessories is more worthwhile. The manual states 92-octane is sufficient, so don't overthink it.


