petrol gauge vs gasoline gage

petrol gauge and gasoline gage both are nouns.

Word	Noun	Adjective	Verb	Adverb
petrol gauge	Yes	No	No	No
gasoline gage	Yes	No	No	No

As nouns, petrol gauge and gasoline gage are synonyms defined as:

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

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

petrol gauge (noun)	gasoline gage (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