-Changes in engine performance: If your car begins to run rough, stall, or experience decreased fuel efficiency, these could be signs of an issue with the fuel system.
-Unusual sounds: Listen for any unusual knocking or pinging noises coming from the engine. These can indicate that the engine is not getting enough fuel or is running too lean.
-Warning lights: If your check engine light or other warning lights illuminate on the dashboard, it's important to have the vehicle inspected.
-Strong or unfamiliar odor: If you notice a strong or unusual odor coming from the gas tank or exhaust, it could be an indication of contamination.
-Water in the fuel system: If water is present in the fuel, it can cause various issues with engine performance. You may notice rough idling, hesitation, or difficulty starting the car.
To confirm whether something has been added to your gas tank and identify the substance, it's recommended to take your vehicle to a qualified mechanic or automotive service center. They can perform diagnostic tests and inspect the fuel system to determine if there is any foreign substance present.
