Hi guys. Just got my LR professionally detailed. The guy said he used a product by simoniz which has Teflon in it. supposedly it lasts 2 years according to him. He said I do not need to use product to wash the car. Just water and the dirt will slide off. I think it is BS. anyway, the truck looks great and is VERY shiny. One thing he kept mentioning to me is NOT to wash the car with dish soap. He said that three times. I never do, but the only reason I am mentioning this here is because I remember someone saying that they do that when they wash their car. He said it strips all the wax and finish off. He actually did that on my car before placing the new wax/sealant on there. took 8 hours and cost $200.