Related Clues:
- Type of stove
- Balloon content
- Truck-stop purchase
- Maalox competitor
- Nitrogen or oxygen
- Word repeated in "Jumpin' Jack Flash"
- Sign along an interstate
- Vacation expense, maybe
- One of the states of matter
- Helium or hydrogen
- Service-station commodity
- One of the three states of matter
- Ford filler
- Fuel at the pump
- Car tankful