Something else that ruins your shine....smoking my aunt smokes so nothing is safe but that can ruin your shine makes it like foggy and stuff ill show some pics of right after i finished my supra and then 6-10 months later.
Before
Some of you might think lighting or camera but its clearly got foggy over the months.
After
Thought i had a front facing pic i must have deleted it. Smoking will effect your clear also humid weather will take the shine away.