If a fuel injector cleaner contains any additives that are not designed to be sensor-safe, it can lead to malfunctions or damage oxygen sensors. Oily substances like seafoam or MMO can increase the attraction of carbon and burnt fuel to a sensor, hampering its performance.

What happens if I use too much fuel injector cleaner?

Frequent overuse or failure to follow your cleaner's instructions may cause harm to your car. Some have noted that using too much cleaner too frequently can cause damage to the engine lining and sealants. It is also possible for the fuel injector cleaner to damage the combustion chamber.

Are fuel injector cleaners good for your car?

A good fuel injector cleaner can improve fuel economy, gas mileage, and vehicle performance. It helps lower maintenance costs by keeping the engine clean. A clean engine delivers more power and better performance because it doesn't have to work as hard.