11. The gas cap is untethered _ find a place for it when you fill up. 12. In fact, the car is so small I'd be looking somewhere below their gas caps . 13. A gas cap comes loose, jeopardizing the flight. 14. When a gas cap is coupled with water influx the recovery mechanism can be highly efficient. 15. Customers would also need a special gas cap and a button-sized transponder affixed to their cars. 16. _You have a rag for a gas cap . 17. Shell hasn't determined how much more the automated service, special gas cap and transponder will cost. 18. The car must also be equipped with a special, spring-loaded gas cap , which costs $ 20. 19. These had straight sided backpack frames, vented gas caps , a cylinder sized regulator and a safety valve. 20. They can't even sell a gas cap ,"
