Stant 10834 Fuel Tank Cap

This is a second cap I bought, to have as an extra. The only negative I can think of, is, it does not attach to the ring wire so it will not get lost. My Matrix consumes lots of oil, due to a rare piston design flaw. I am pleasant surprised it is significantly better using 1 quart per 500 miles instead of 1 quart per 300 miles. Also, the gas mileage is about 2mpg better than my old cap.