Should a 2.0T engine use 92 or 95 octane gasoline?

[RafaelDella]

It depends on the specific vehicle. Some joint-venture cars require 95 octane gasoline, while most domestic vehicles use 92 octane. The owner's manual usually specifies the recommended fuel grade, and manufacturers often place a reminder near the fuel filler cap. Introduction to gasoline octane ratings: This represents the ratio between the actual gasoline's anti-knock performance and that of standard gasoline. Higher octane numbers indicate stronger anti-knock properties. Composition of gasoline octane ratings: Standard gasoline consists of isooctane and n-heptane. Isooctane has good anti-knock properties with an octane rating of 100; n-heptane has poor anti-knock performance and is prone to engine knocking in gasoline engines, with an octane rating of 0.