Originally Posted by claykin
Exactly my point. Fuel and air mixture will ignite much easier. I wonder if they don't let a car with a full tank of fuel park in an indoor parking structure.
Do they use the same rule for diesels?
It's not about explosive risk, it's about total volume and spillage. There are a lot of cars in the building at any given time.
Parking structures are made of concrete and have significant ventilation and fire suppression systems. And they're not intended to be filled with occupants.