petrol gauge vs gas gauge

petrol gauge and gas gauge both are nouns.

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

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

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

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

petrol 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