Will gas stations underfill your tank?

[McIsaac]

Gas stations generally do not underfill your tank. Precautions when refueling: Choose reputable gas stations: If the gasoline quality is poor, it can cause carbon buildup on valves, fuel injectors, intake manifolds, and combustion chambers, leading to cold start difficulties, engine shaking, cold engine knocking, and issues like catalytic converter clogging or sintering. Select appropriate fuel: Choose the right gasoline based on your car's engine power output. Generally, when purchasing a car, you can find a label near the engine indicating the recommended gasoline grade, so there's no need to use more expensive fuel.