
Tayron does not require the use of 98-octane gasoline, as the manufacturer recommends 95-octane gasoline. Below is relevant information about gasoline octane ratings: Density of different octane gasoline: The density of gasoline varies with different octane ratings. The most commonly encountered are 92-octane and 95-octane gasoline. The density of 92-octane gasoline is approximately 0.72g/ml, while 95-octane gasoline has a density of about 0.725g/ml, and 98-octane gasoline is around 0.737g/ml. Octane rating: Higher octane gasoline contains more additives, and these additives have a greater density than the base gasoline. Therefore, gasoline with a higher octane rating has a greater density.

I remember helping a friend with the owner's manual for the Tayron. Most Tayron models specify a recommendation for 95-octane gasoline. While using 98-octane isn't an issue, if the engine doesn't specifically require it, there's no need to spend extra on it. 98-octane has a higher octane rating, primarily reducing the risk of knocking and improving smoothness during high-speed acceleration. However, the Tayron's engine is designed to perform optimally with 95-octane, and there's no noticeable difference in daily driving. If you occasionally take it to the track or face particularly rough road conditions, 98-octane might offer some additional protection, but the extra cost for this premium fuel results in negligible mileage savings. I also recommend checking the manual for the specified fuel grade before each refuel to avoid being upsold at the gas station. Using a higher octane fuel unnecessarily can lead to incomplete combustion, which isn't beneficial for the engine in the long run.

I've been driving the Tayron for years and always stick with 95-octane fuel without encountering any issues. 98-octane? No need for unnecessary hassle—the extra cost could buy a week's worth of coffee. While 98-octane has a higher theoretical advantage in reducing engine noise, the Tayron's standard engine can't fully utilize those extra benefits. Whether in city traffic or long highway drives, 95-octane is more than sufficient. Gas stations often push 98-octane as premium, but the actual effect is like taking supplements—no need if there's no problem. I tried 98-octane once and didn't notice any significant improvement in fuel efficiency. It just reminded me to check the manual more often: it clearly states 95-octane as the optimal choice.

From a cost-saving perspective, the Tayron really shouldn't use 98-octane gasoline. 95-octane is 1-2 yuan cheaper per liter, while 98-octane is unreasonably expensive with no noticeable performance improvement. The octane rating difference only matters at high RPMs, but the Tayron's engine is designed for 95-octane, with minimal knock risk in daily driving. Paying extra for 98-octane is essentially wasting money for psychological comfort, as mileage savings are often negligible. I've done the math - only upgrade to 98-octane if the engine explicitly requires it; otherwise, stick to the manual's 95-octane recommendation and save the fuel costs for maintenance funds. Also, remember to avoid off-brand gasoline - fuel consistency is more crucial.

When maintaining the Tiguan, I always emphasize the fuel grade issue: the manual recommends 95 octane gasoline. Using 98 octane won't cause harm, but in the long run, it offers no additional benefits unless it's a specific high-performance version. 98 octane has a higher octane rating, which can reduce engine knocking and slightly improve response speed. However, the standard Tiguan engine already runs smoothly on 95 octane. Randomly switching to 98 octane might affect components due to mismatched combustion characteristics, potentially increasing maintenance costs. I recommend owners stick to the specified 95 octane while regularly changing engine oil and air filters to ensure engine health. This approach is more effective in extending vehicle lifespan than using premium fuel and avoids unnecessary expenses.


