petrol line vs fuel line

petrol line and fuel line both are nouns.

Word	Noun	Adjective	Verb	Adverb
petrol line	Yes	No	No	No
fuel line	Yes	No	No	No

As nouns, petrol line and fuel line are synonyms defined as:

petrol line and fuel line: a pipe that carries gasoline from a tank to a gasoline engine

Other synonyms of petrol line include gas line.

petrol line (noun)	fuel line (noun)
a pipe that carries gasoline from a tank to a gasoline engine	a pipe that carries gasoline from a tank to a gasoline engine