What grade of gasoline should a Polo use?

[MiguelRose]

Polo can use either 92 or 95 octane gasoline. The difference between 92 and 95 octane gasoline lies in the ratio of n-heptane and isooctane: 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. The higher the proportion of isooctane, the better the anti-knock performance. Different grades of gasoline can be mixed, but it is not recommended. Car owners should correctly add gasoline according to the car manual or the label on the fuel tank cap. Cars requiring high-grade gasoline need gasoline with better anti-knock performance. Using low-grade gasoline will cause knocking in the engine cylinder. Cars requiring low-grade gasoline will not experience knocking when using high-grade gasoline, but excessive carbon deposits may occur due to insufficient temperature and pressure in the cylinder.

[LeSara]

As a long-time Volkswagen Polo owner, I've always used 95-octane gasoline. The manual recommends 93 or 95 octane depending on the model year. Higher-octane fuel has better anti-knock properties and is particularly suitable for high-compression engines - my car's engine runs smoother with less vibration. However, using 93-octane is also acceptable and more economical, just avoid fuels below 92 octane as they may cause engine-damaging knocking. Regularly check your manual for specified octane requirements as regional naming conventions may differ (e.g., China's 92-octane replaces 93). Driving habits also affect fuel efficiency - smooth acceleration impacts economy more than octane choice, leading to lower long-term maintenance costs. Ultimately, follow your manual's guidance; using 95-octane is the safer choice for engine longevity.

[AnnieLee]

From a car repair perspective, whether a Polo should use 93 or 95 octane gasoline mainly depends on the engine model. The gasoline octane rating prevents knocking and protects internal components to avoid detonation noise. Using lower octane fuel like 92 may cause premature ignition, increasing piston damage and carbon buildup, potentially requiring major repairs in severe cases. Higher octane fuel doesn't waste money but isn't necessary beyond recommended values - some new Polo models may require 95 octane or above, so always check the manual to avoid using wrong fuel. Gas station selection is also crucial; choose reputable stations to prevent poor-quality gasoline from affecting performance. During regular maintenance, check spark plug carbon deposits - using proper octane can reduce such issues, ensuring driving safety and saving repair costs. Never overlook fuel quality.

[LeKinsley]

I've been commuting with my Polo for quite some time. The manual recommends using 93 or 95 octane gasoline. The octane number represents anti-knock capability, so just using 95 octane daily is simple and worry-free. Occasionally using lower octane fuel isn't a big problem, but it's not recommended for long-term use. Pay attention to how the car feels while driving - if there's abnormal vibration, check if the octane rating might be mismatched. Don't worry about using higher octane than needed as it's unnecessary. Sticking to the manufacturer's recommendation is the most hassle-free approach. Also, there are regional differences - in China, 92 octane is often used instead of 93, but the effect is quite similar. Choose reputable gas stations to avoid counterfeit fuel. This way, you'll have economical and smooth driving.