Related Clues:
- Helium e.g
- Car trip purchase
- Solid, liquid, ___
- Fuel found with short cut
- Lincoln's need
- Accelerator, informally
- Ethane or methane [#UniversalXwordPride]
- Neon or xenon
- Neon, for instance
- One may condense into a liquid
- 'Jet' or 'tank' preceder
- What an electric car doesn't use
- Almost choke CO?
- ''Natural'' home heating
- Composition of most of Jupiter