Is it useful to add gasoline additives to cars?

[DelLawson]

Adding gasoline additives to cars is useful. Gasoline additives can increase the octane number of gasoline, making it burn more completely and reducing carbon deposits. This helps maintain the engine's power and fuel consumption, preventing a decrease in engine power and an increase in fuel consumption due to excessive carbon deposits. There are four common types of additives on the market: 1. Cleaning type: suitable for cars with high mileage and older models; 2. Maintenance type: suitable for new cars; 3. Octane number adjustment type: suitable for areas where the gasoline quality is not very good; 4. Comprehensive type: suitable for all vehicles.