Lpg

2 clues
Liquid fuel
Propane or butane
Similar answers:
2layer
4wheel
Aaaautoclub
Aaaball
Aaacell
Aaal
Aaamilne
Aacell
Aacells
Aal
Aalarge
Aalborg
Aalen
Aalii
Aaline
Aaliyah
Aalon
Aals
Aalst
Aalto