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2 answers

The air filter is mainly just dirt and dust in the air. The oil filter also dirt and minute metal particles from normal engine wear. The oil suspends the chemical pollutants and that is why you need to change it often.

2006-11-04 15:03:58 · answer #1 · answered by the_buccaru 5 · 0 0

dust in an air filter and bacteria in an oil filter

2006-11-04 14:59:46 · answer #2 · answered by macgyver 1 · 0 1

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