SHORT-MEASURED?
HOW TO REPORT
PUMP PROBLEMS
If you suspect a gas pump is inaccurate or malfunctioning, you have the right to an investigation. Here is how to protect your wallet and your vehicle.
The Science of the Sealed Pump
In the United States, gas pumps are some of the most strictly regulated measuring devices in commerce. Every pump is required by law to undergo regular inspections by state or county officials to ensure that one “gallon” on the screen is exactly one gallon in your tank. However, mechanical wear, software glitches, and extreme temperatures can occasionally cause a pump to drift out of calibration.
Signs Your Gas Pump is Malfunctioning
While most “short-measure” suspicions are actually due to tank capacity variations, there are clear physical signs that a pump is failing:
- The “Creeping” Meter: If the price or gallon counter starts moving before you have squeezed the nozzle handle, the pump has a pressure leak or a calibration error.
- Unusual Noises: Excessive grinding or thumping sounds from the pump housing often indicate a failing meter that may not be recording volume accurately.
- The “Air” Jump: If the nozzle “kicks back” or sputters excessively, the pump may be pulling air into the line, which can lead to you paying for air pockets instead of liquid fuel.
How to File an Official Complaint
If you encounter a faulty pump, your first step should be to notify the station attendant. However, to ensure a formal investigation, you must contact your state’s **Department of Weights and Measures** (sometimes part of the Department of Agriculture).
When you call or file an online report, you will need the following information:
- The exact address of the station.
- The specific pump number (usually found on a sticker near the screen).
- The grade of fuel you were purchasing.
- The date and time of the incident.
LOOK FOR THE INSPECTION SEAL
Every legal gas pump in the U.S. must display a physical inspection decal (often a brightly colored sticker with the year). This seal proves the pump was tested and “sealed” by a state official. If you see a pump with a missing or expired seal (dated before 2025), it is statistically more likely to be inaccurate. Reporting these expired seals helps the state prioritize which stations need an immediate audit.
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