We’ve all done it at least once in our lives-filling up the gas tank when the diesel engine needs topping off. It’s a common mistake, particularly in European countries where diesel cars are more prevalent. But what happens when you accidentally put gasoline in a diesel engine? And what can you do to fix it? We’ll delve into the potential consequences of this mistake and the steps you need to take to get your vehicle back on the road.
The repercussions of misfueling can vary depending on how much gasoline was added and how quickly the engine was stopped. Diesel engines require diesel fuel to lubricate the moving parts, so adding gasoline instead can quickly cause damage. Symptoms of a misfuelled diesel engine may include difficulty starting the engine, decreased power and acceleration, and unusual noises from the engine.
If you’ve only just realized your mistake and have yet to start the engine, there’s a good chance you can avoid any permanent damage. In this scenario, the best thing to do is not attempt to start the engine and have it towed to a garage for a complete tank drain and engine flush. This will prevent any gasoline from going through the engine, potentially causing a complete failure.
If you’ve already started driving and notice unusual symptoms in your vehicle, stop driving immediately and have it towed to a garage. The longer you drive on gasoline in a diesel engine, the more damage it’s likely to cause. The fuel system and parts must be flushed and cleaned to remove gasoline residue and avoid further damage.
Fleet vehicles, in particular, are prone to misfuelling due to the high frequency of refueling and numerous drivers who may be unfamiliar with the vehicle’s specific fuel requirements. To prevent this costly mistake, consider using external signage to clarify the fuel type required, employing dedicated fuel management software, or installing a misfuelling prevention device. These options will help to avoid any mistakes that could lead to vehicle downtime and/or costly repairs.
Accidentally putting gasoline in diesel engines can be costly and time-consuming. However, with proper care and quick action, once the mistake has been identified, it’s possible to avoid any lasting damage to the engine. Remember to stay calm if you misfuel your car, don’t try to start the engine, and have it towed to a garage for proper handling. Lastly, if you’re a fleet manager, consider the preventative measures we’ve listed above to avoid any misfueling in the first place.