On most cars ... gas in the filler neck is, as Brian puts it, "No good. Do not do that." He showed the fuel cap, noting that it is vented. "This is a little vent hole, and down here is a little ...

Then the clip cuts to him holding the car’s gas cap in his hand ... “This is a little vent hole and down here is a little drain hole,” he says. He puts a light on another portion of ...