LIke the topic say, will it remove oxidation? I just used it the second time the past weekend, I didn't clay bar it because after I wash it, I run my hand over the paint and it seems smooth enough not to clay bar. Then I follow their instruction, use Z-1 first, then topped with Z5, then Z6, then Z5 again, then Z6, then topped with Z2 to end the day. It looks better than before but not as good as someone who posted pic on OT. Is it because my car is white? I read something that Zaino is good on draker color cars but not light color cars. Thanks.