I dont usually post on the A forum, but this is a sore subject for me. I had a brand new Kidde this summer, and a fire under the hood on my 55. I was doing a compression test with the carb off. I forgot to empty the quart bottle the fuel hose was pumping in to. On number seven it overflowed and ignited. The month old Kidde would not fire in three tries. I also had a new marine grade extinguisher in the car. It put the fire out in one second. The Kidde came with a plastic holder that broke before it could be used. The marine grade extinguisher had a metal clamp/base. The marine grade was 14 bucks more, and it saved the car, the garage, and the truck parked along side just out the door. Spend a bit more, your goodies are worth it.