Real funny how people keep asking why fool companies put contaminants in polish, the answer is I don't know I didn't do it. Probably the same way co's put free silicones in some polishes like Auri Gold. Does any of you genuises doubt that petroleum distilates are paint contaminats? They probably don't use a lot but for those of you that doubt it, put a pint of oil or gas on your hood and let it bake in, those are two other products with petroleum distilates. Not only are they contaminants but they also attract dust which makes the situation worse. Even though all these factors exist with klasse i still use it, when certain customers ask for it, I'd just rather use menzerna, ts clear, and three or 4 others. Lol at dude who said greying, that's funny. It's yellowing bud and because of the background it shows grey, thanks for proving my point. Did Zaino ever grey on you, tell the truth? Them saying Zaino should be 3 coats in 24 is a suggestion! Just like Sal saying don't put a finishing wax, it's a suggestion. However, I use finishing wax all the time, think out of the box you guys. As for why do they put petro in waxes heres my comment, all of those attract dust right? The other point is that oil (petro) makes a deep shine, that's the main reason they put it in the polish. Companies want your shine to look good and protect against tar and spots, that is what most customers want, those companies don't care if they damage your paint slowly and slightly with their product if thats what they have to do to make it LOOK GOOD. Using petro distilates is the cheap and lazy way to do it and it is old and popular technology, many companies use alternatives but they cost more and require substancial r&d. My best evidence is your own comments. All you work in a klasse plant or what? I don't care if you all like that product anyway that's cool, just don't deny the objective data, it makes you look foolish. I'm sure you'll chew me again but admit I have a point and move on.