What Happens If You Put the Wrong Fuel in a Car?

[AmirDella]

The effects of using the wrong fuel in a car: 1. Using a lower octane fuel than required: The car may experience insufficient power and higher fuel consumption, but as long as it's not used for an extended period, it won't cause significant damage. Conversely, using a higher octane fuel than required generally has no adverse effects. 2. Adding gasoline to a diesel engine: The car may start, but due to incomplete combustion of gasoline, it will gradually lose power while driving, leading to shaking and white smoke. In this case, the fuel system needs to be thoroughly cleaned. 3. Adding diesel to a gasoline engine: The vehicle won't start. Diesel has a lower ignition point, and while gasoline engines use spark ignition, diesel engines rely on compression ignition. The spark plugs in a gasoline engine will directly ignite diesel, causing knocking, engine damage, black smoke, vehicle shaking, and failure to start. In such cases, contact a repair shop to clean the fuel system.