auto tire vs rubber tire

auto tire and rubber tire both are nouns.

Word	Noun	Adjective	Verb	Adverb
auto tire	Yes	No	No	No
rubber tire	Yes	No	No	No

As nouns, auto tire and rubber tire are synonyms defined as:

auto tire and rubber tire: a tire consisting of a rubber ring around the rim of an automobile wheel

Other synonyms of auto tire include automobile tire, car tire.

auto tire (noun)	rubber tire (noun)
a tire consisting of a rubber ring around the rim of an automobile wheel	a tire consisting of a rubber ring around the rim of an automobile wheel