Knowledge Matrix on Instagram: "Have you ever noticed your car’s tank seems fuller at night than during the day, even if the pump reads the same? The culprit isn’t a faulty meter — it’s fuel temperature. Gasoline and diesel expand and contract depending on temperature. During the heat of the day, fuel molecules move faster, increasing volume. A liter measured in scorching midday heat actually contains slightly less mass than the same liter at cooler night temperatures. At night or early morning,