Should the Lavida 1.4T use 92 or 95 octane gasoline?

[Jane]

Lavida 1.4T should use 92 octane gasoline, as 92 octane is suitable for gasoline engines with a compression ratio between 8.6 and 9.9. Fuel grades typically include 90, 92, 93, 95, etc. The higher the grade, the better the anti-knock performance. Since the anti-knock component is isooctane, a higher grade indicates a higher isooctane content in the gasoline, naturally resulting in stronger anti-knock properties. The Lavida is a compact sedan under the Volkswagen brand, with dimensions of 4670 mm in length, 1806 mm in width, and 1474 mm in height, and a wheelbase of 2688 mm. The Lavida is equipped with three engine options: a 1.2L turbocharged engine, a 1.4L turbocharged engine, and a 1.5L naturally aspirated engine.