gasoline gauge vs gas gauge

gasoline gauge and gas gauge both are nouns.

Word	Noun	Adjective	Verb	Adverb
gasoline gauge	Yes	No	No	No
gas gauge	Yes	No	No	No

As nouns, gasoline gauge and gas gauge are synonyms defined as:

gasoline gauge and gas gauge: gauge that indicates the amount of gasoline left in the gasoline tank of a vehicle

Other synonyms of gasoline gauge include gas gage, gasoline gage, petrol gage, petrol gauge.

gasoline gauge (noun)	gas gauge (noun)
gauge that indicates the amount of gasoline left in the gasoline tank of a vehicle	gauge that indicates the amount of gasoline left in the gasoline tank of a vehicle