Putting diesel fuel in a gasoline car can cause a variety of problems, the severity of which depends on the quantity of diesel added to the fuel tank
. Diesel fuel is thicker and denser than gasoline, which can cause the fuel pump to struggle to move the fuel mixture through the system
. Here's a breakdown of the potential consequences:
- Engine Performance Issues Diesel does not ignite as efficiently as gasoline, leading to issues such as rough idling, decreased power, knocking sounds, misfires, and stalling
. The engine may struggle to start or may emit unusual noises
- Fuel System Damage Diesel fuel can clog the fuel injectors and fuel filter, potentially causing corrosion and damage to the fuel pump and other fuel system components
. The longer diesel remains in the system, the greater the risk of damage to the fuel pumps and fuel lines
- Exhaust Smoke and Pollution The engine may emit excessive smoke and produce more pollutants because of incomplete combustion
. This can also lead to catalytic converter failure
- Potential for Serious Damage In the long term, running a gasoline engine with diesel fuel can cause severe damage, potentially leading to engine failure, which may require costly repairs or even engine replacement
If you realize you've put diesel in your gasoline car, do not start or run the engine
. Contact a professional to drain the fuel tank and flush the system
