Is 92 or 95 Octane Better for Turbocharged Engines?

[SanLayla]

There is no definitive answer as to which is better; choosing the most suitable one is the correct approach. Here is relevant information: 1. The octane rating of fuel to be used in a car is determined by the manufacturer's tuning and settings. Not all turbocharged engines require 95 octane gasoline, nor does a higher compression ratio necessarily mean 95 octane should be used. 2. The difference between 92 and 95 octane gasoline lies in their octane content, which affects the fuel's anti-knock capability. Higher octane fuels generally have stronger anti-knock properties, making them suitable for high-compression engines in principle. However, there are exceptions, such as Mazda and Mitsubishi EVO models, where the manufacturer's tuning and instructions should be followed. It is not true that higher octane gasoline is cleaner or produces more heat. The octane rating has no relation to cleanliness or heat output.