evidence: The content warns people about possible vehicle explosion in case they choose to fill the fuel tank to its maximum limit in summer. The advisory asks people to open the fuel tank once a day to let the gas pass. [...] Indian Oil, on June 10, 2018, tweeted clarifying that the company did not issue any such advisory. In the announcement, Indian Oil said, "There are rumors in social media that Indian Oil has given a warning to the following effect: Due to increase in temperature please don't fill petrol to the maximum limit of the tank; it will cause an explosion in the fuel tank. If you want petrol, fill the half tank and leave the rest for air(sic)." [...] The claim that filling up the fuel tank in the vehicle to the maximum limit will trigger an explosion, makes little scientific sense. This is because the auto-ignition temperature (the minimum temperature required to ignite a gas or vapor in the air without a spark or flame being present) for petrol is 495°F or 257°C. This is way higher than the temperature that an insulated tank can attain in summers with the highest recorded temperature on earth being 56.7°C (134°F), which was measured on 10 July 1913 at Greenland Ranch, Death Valley, California, USA.