What grade of gasoline should the Highlander use?

[OAlice]

The Highlander should be refueled with 95 octane unleaded gasoline. Relevant information about the Highlander is as follows: 1. Interior: The Highlander's interior features a simple and elegant overall design with numerous buttons on the center console, but they are well-arranged for convenient operation. 2. Powertrain: The Highlander offers two powertrain options—a 3.5L V6 engine paired with a 5-speed automatic transmission and a 2.7L L4 engine paired with a 6-speed automatic transmission. 3. Space: The Highlander has a tall body, providing spacious and ample interior room. The second row can slide forward and backward by 120mm, and the middle seat can be freely removed or combined. The third row can also be folded down proportionally to increase space flexibility and expand the trunk capacity.

[Bethany]

I've been driving a Highlander for three years and always insisted on using 95-octane gasoline, as the owner's manual clearly states that this grade of unleaded fuel is required. Initially, I tried using 92-octane but noticed slower throttle response and slight vibrations, so I quickly switched back. My daily driving mainly consists of commuting and weekend family trips, so using higher-quality fuel gives me peace of mind. Although 95-octane is slightly more expensive than 92-octane, the overall fuel efficiency is better, saving some money on gas. When refueling in remote areas, I always choose reputable gas stations to avoid engine damage from poor-quality fuel. Older cars might not be as sensitive, but for a precision-engineered SUV like the Highlander, using the wrong fuel to save trouble could lead to major issues, with repair costs running into thousands. Therefore, I recommend strictly following the manufacturer's advice and not taking unnecessary risks.

[MacBradley]

From the perspective of engine technology, the Highlander's requirement for 95-octane gasoline isn't arbitrarily determined. Its engine features a high compression ratio, and low-octane fuel can easily cause knocking, potentially damaging pistons and spark plugs. Knocking doesn't just affect power output; over time, it increases fuel consumption, especially noticeable during hot summer temperatures. Having studied automotive principles, I can confirm that 95-octane matches the ECU settings perfectly, allowing for automatic optimization of ignition timing. While using 92-octane might trigger temporary sensor adjustments, it accelerates wear. High-performance variants may require 98-octane, but for standard Highlanders, 95-octane strikes the right balance between performance and durability. During maintenance, always check the fuel cap label and maintain a habit of recording fuel grades – this practice is crucial for prolonging vehicle lifespan.

[LeAsher]

In terms of safe vehicle usage, the Highlander must be fueled with 95-octane gasoline. I know some people try to save money by using 92-octane fuel, but soon after, they experience issues like the engine warning light turning on or unstable idling. If the engine stalls on the highway, it could be dangerous. Using the wrong gasoline grade can lead to increased carbon deposits or engine knocking, and in severe cases, it may require major repairs, which would cost thousands—definitely not worth it. Always check the fuel pump label before refueling to ensure it's 95-octane. Before long trips, inspect the fuel tank and avoid compromising by adding lower-grade fuel midway. Especially during the first tens of thousands of kilometers of a new car's life, it's crucial to use the correct fuel. Safe driving should always come first; don’t create major risks by trying to save a little money.