| Dentist's anesthetic | 24 |
| Dentist's administration | 28 |
| Dental administration? | 22 |
| Delightful time | 15 |
| Cost included in a Zipcar membership | 36 |
| Corner _____ | 12 |
| Cooking option | 14 |
| Cooking choice | 14 |
| Convenience store buy | 21 |
| Civic need? | 11 |
| Car's need | 14 |
| Car-tank fuel | 13 |
| Car tankful | 11 |
| Car fluid | 9 |
| Car fill-up | 11 |
| Car "go" liquid | 25 |
| Butt's Corner _____ | 23 |
| Butt's Corner ____ | 22 |
| Burner fuel | 11 |
| Bunch of fun | 12 |
| Bromo target | 12 |
| Braggart's output | 21 |
| Boyle's law matter | 22 |
| Bloviation | 10 |
| Beetles go nowhere without it? | 30 |
| Beetle's need | 17 |
| Beano competitor | 16 |
| Balloon need | 12 |
| Balloon ingredient | 18 |
| Balloon filling | 15 |
| Bad thing to guzzle | 19 |
| Auto's tankful | 18 |
| Argon, for one | 14 |
| Argon or xenon | 14 |
| Argon or radon | 14 |
| Argon or krypton | 16 |
| Argon or helium | 15 |
| Any inert element | 17 |
| Alternative to oil | 18 |
| Alternative to coal | 19 |
| Accelerator? | 12 |
| Accelerator pedal | 17 |
| A utility | 9 |
| A number of dental patients? | 28 |
| "Noble" element | 25 |
| "Laughing" or "natural" follower | 52 |
| "Juice" for Jeff Gordon | 33 |
| "Fill 'er up" filler | 34 |
| "Eat Here and Get ___" | 32 |
| "All is ___ and gaiters": Dickens | 43 |
| --- guzzler | 11 |
| ___-guzzler (car that gets poor mileage) | 40 |
| ___-guzzler | 11 |
| Chatterbox | 10 |
| Windy one | 9 |
| Big talker | 10 |
| Windy sort | 10 |
| One who talks, talks, talks | 27 |
| Long-winded one | 15 |
| Hot-air artist | 14 |
| Wind source | 11 |
| Talkative guy | 13 |
| Talkaholic | 10 |
| Sort who needs to button up | 27 |
| Long-winded person | 18 |
| Garrulous sort | 14 |
| Endless talker | 14 |
| Driveling dullard | 17 |
| Chatty Cathy | 12 |
| Tank top | 8 |
| It's removed for a fill-up | 30 |
| Tank cover | 10 |
| Turning point at the station? | 29 |
| Top removed by attendants | 25 |
| Tank top often removed in public? | 33 |
| Tank lid | 8 |
| Often-removed car part | 22 |
| Item replaced after a fill-up | 29 |
| It's replaced after a fill-up | 33 |
| It's removed to pump fuel | 29 |
| It's removed at the pump | 28 |
| It's opened for a fill-up | 29 |
| It's opened at the pump | 27 |
| It should be tightened until it clicks | 38 |
| It gets screwed at the pump | 27 |
| Car's tank cover | 20 |
| A loose one may activate the "Check engine" light | 59 |
| Tank tops | 9 |
| Tops taken off at stations | 26 |
| Things removed by pumps | 23 |
| Nebula makeup | 13 |
| Krypton and others | 18 |
| Helium and neon | 15 |
| Argon and neon | 14 |
| Neon and hydrogen | 17 |
| Hydrogen and oxygen, e.g. | 25 |
| Unseen elements | 15 |
| The first two periodic table entries | 36 |
| Some may be noble | 17 |
| Some are inert | 14 |