Fuelling Up at Night Saves No Money — The Old Myth Debunked

The popular belief that fuelling up at night or at dawn yields more petrol for your money has no scientific basis — underground tanks keep fuel at a near-constant temperature, so its density barely changes. Diesel is approaching 7 PLN per litre in Poland, with 95-octane petrol close behind. The only practical way to save money is to compare current prices across stations before filling up.