(See Fig. A, below, to find the wind zone you live in.) It won't cost a fortune, either. A little elbow grease and the building materials will all but guarantee your family's injury-free survival in any storm that comes down the pike. Keep in mind that a safe room can be more than just a storm shelter.
Expansion Tanks. The expansion tank is a vital part of your car's cooling system and acts as an overflow reservoir catching the water/coolant mix that is forced from your radiator as it heats and builds pressure in the system. cooling systems would explode under pressure or the coolant would be forced from the overflow tube on the radiator and leak onto the road. If your find yourself having to replace coolant too regularly then check your expansion tank and the rest of your system for leaks.
Overfilling the tank can cause vapor lock in the fuel line, damage to the fuel pump, your car's PCM to throw false trouble codes, federally required emissions tests to not be run, and in worst cases, the car to catch fire (due to excess vapors around the tank and/or raw gasoline dripping from the vapor vent).onfidence votes 3.6K. Yes. Five percent of your gas tank's volume is reserved, and required, to allow for gasoline vapors to expand. So if you have a 25 gallon tank, the the most it will hold is 23.75 gallons.