Related Clues:
- With 79-Down, fuel-inefficient vehicle
- Oxygen, for one
- Old-time furnace fuel
- Hopper fill
- Upton Sinclair novel that inspired 'There Will Be Blood'
- Braggadocio
- Accelerator?
- Anthracite or lignite
- Ozone, for one
- ''Giant'' discovery
- Argon or neon
- Use 3-IN-ONE, e.g.
- What the Ewings and Clampetts had in common
- Refined fossil fuel
- Frosty's eyes