What Happens When You Pump The Wrong Fuel For Your Volvo Car?

Mistakes at the fuel pump happen more often than people think, and the results can be frustrating. Accidentally pump the wrong fuel into your Volvo, and the engine may struggle, stall, or refuse to start. What happens next depends on how quickly the mistake is caught and whether the engine was turned on. Acting fast can help prevent costly damage, but knowing the right steps to take is just as important. Let's break down what happens when the wrong fuel enters your Volvo and how to handle the situation the right way.

Gasoline in a Diesel Engine

Diesel engines work differently from gasoline engines. Diesel fuel acts as both a lubricant and a source of power. If gasoline enters a diesel engine, it can reduce lubrication, leading to friction between moving parts. Over time, this can cause damage to the fuel pump and injectors.

Another problem is that gasoline ignites differently than diesel. It burns faster and at a higher temperature. This can cause the engine to knock, misfire, or even fail to start. You might notice thick smoke from the exhaust, a rough idle, or sudden power loss.

The longer the wrong fuel stays in the system, the worse the damage can get. That is why shutting off the engine and seeking professional help right away is the best course of action.

Diesel in a Gasoline Engine

If diesel enters a gasoline engine, the fuel system can quickly become clogged. Diesel is thicker and oilier than gasoline, which can cause buildup on spark plugs and fuel injectors. This can make the engine struggle to run, produce excessive smoke, or stall completely.

Gasoline engines rely on spark plugs to ignite the fuel. Since diesel does not ignite as easily, the engine may misfire, shake, or refuse to start. If you accidentally add diesel, you should not attempt to start the car. The fuel should be drained before it moves further into the system.

Signs That You Used the Wrong Fuel

Recognizing the symptoms early can help prevent further problems. If you accidentally pump the wrong fuel for your Volvo car, you may notice:

• The engine struggling to start or refusing to turn over
• A knocking sound while the car is running
• Excessive smoke coming from the exhaust
• Reduced power or sudden stalling
• Warning lights appearing on the dashboard

If any of these symptoms appear after refueling, stop the car as soon as it is safe to do so and call for professional assistance.

What to Do if You Pump the Wrong Fuel

The most important thing is to avoid starting the engine. If the wrong fuel stays in the tank without moving through the system, the damage will be minimal. However, once the engine runs, the incorrect fuel can spread, causing more issues.

Instead of driving the car, call for professional help. Many roadside assistance programs offer fuel draining services. Volvo's Tow for Life program provides free towing to the nearest authorized Volvo service center, even if your car is no longer under warranty. This service ensures that trained Volvo technicians handle the issue, reducing the risk of further engine damage.

Once the incorrect fuel is removed, a mechanic will inspect the system and refill the tank with the proper fuel. This process helps prevent long-term issues and gets your car running smoothly again.

How to Prevent Misfueling

This mistake can happen easily, especially when switching between different cars. To avoid misfueling, always check the fuel label before refueling. Volvo vehicles often have a sticker inside the fuel flap indicating the correct type. Taking a moment to verify the pump selection can prevent costly repairs.

If multiple drivers use the car, make sure everyone knows which fuel it requires. Staying focused while at the pump and avoiding distractions can also help reduce errors.

Volvo Cars Brooklyn Can Fix the Problem

If you pump the wrong fuel for your Volvo car, we at Volvo Cars Brooklyn can help. Our Volvo service center in Brooklyn, NY, has trained technicians who can remove the incorrect fuel, inspect your engine, and restore your car's performance.

We provide expert care to keep your Volvo in top condition. If you need assistance, schedule a service appointment with us today.