* Fuel System Incompatibility: Flex engines (also known as E85 engines) are designed to run on gasoline or a blend of gasoline and ethanol (E85). Diesel fuel has a different chemical composition and is much heavier than gasoline. This means it won't mix properly with the fuel in the tank, and it can clog fuel lines and filters.
* Engine Damage: Diesel fuel doesn't burn as efficiently as gasoline in a flex engine. This can lead to:
* Poor Combustion: Incomplete burning can cause damage to engine components like spark plugs and catalytic converters.
* Fuel System Issues: Diesel fuel can damage fuel injectors, which are designed to handle gasoline.
* Increased Emissions: Incomplete combustion also results in higher emissions of harmful pollutants.
* Engine Seizure: In severe cases, diesel fuel can cause the engine to seize up completely, leading to a major repair or even a replacement engine.
In short, putting diesel fuel in a flex engine is not only a bad idea, it can be very costly. If you accidentally put diesel fuel in your flex engine, it's essential to immediately seek professional help from a qualified mechanic.
