| 100% | ETHANOL | 7 | The Model T was designed to run on it |
| 42% | ERR | 3 | It is better to ___ on the side of caution |
| 42% | WAVELENGTH | 10 | It's good for team members to be on the same one |
| 42% | APR | 3 | It is the cruelest month according to T.S. Eliot, for short |
| 40% | ETHANOL | 7 | What the first Model T's could run on |
| 39% | ORAL | 4 | Like a contract that's said to be "not worth the paper it's written on" |
| 38% | TOPGEAR | 7 | Long-running show on which models are put to the test |
| 38% | NINE | 4 | Musical whose numerical title adds one-half to that of the Fellini film on which it is based |
| 38% | IOS | 3 | The iPhone runs on it |
| 38% | DEBTALF | 7 | ... Looking back on it, it's weird the rental company was named ___. What does an ET owing money have to do with trucks?
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| 38% | HINGE | 5 | “The dating app designed to be deleted,” according to its slogan |
| 37% | LIEN | 4 | Something people don't want to be on the house |
| 37% | NEILARMSTRONG | 13 | Astronaut whose birthday it is today, who became the first man to set foot on the Moon: 2 wds. |
| 37% | SKIS | 4 | Is on the run |
| 37% | SKIS | 4 | Is on the run? |
| 37% | BANGAGONG | 9 | T. Rex hit that was titled “Get It On” in the U.K. |
| 37% | MARLAMAPLES | 11 | ___ sez: "Come to where the syrup is—and pour it on!" |
| 37% | MATTHEWPERRY | 12 | Actor whose birthday it is today, who shot to fame as Chandler Bing on the hit sitcom, "Friends": 2 wds. |
| 37% | SAMESEXMARRIAGE | 15 | The Netherlands was the first country to legalize it |
| 37% | SKI | 3 | It goes on the run |
| 37% | TEAPARTY | 8 | It runs to the right |
| 36% | MILE | 4 | Roger Bannister was the first to run it in under four minutes |
| 36% | LEADINGQUESTION | 15 | It's designed to elicit a certain answer ... or where the end of 17-, 25- and 47-Across may be found |
| 36% | AGROUND | 7 | To run a ship onto the beach or on land |
| 36% | OZONELAYER | 10 | What the Montreal Protocol was designed to protect |
| 36% | LANDMINES | 9 | Explosives designed to be buried under the surface |
| 36% | EXES | 4 | Awkward people to run into on the street |
| 36% | EMPTY | 5 | It's dangerous to run on |
| 36% | PORT | 4 | It was left on the Titanic |
| 36% | ULNA | 4 | It runs parallel to the radius |