To be honest, I must say that this was the biggest crap what I ordered so far, and I paid !! Can I unfortunately just throw in the trash. Regenabweiser absolutely zero because no effect !! Plasepflege, because you can take any other maintenance products, I am an absolute car nurses with years of experience, but the product is absolutely the last. The best products has provided by far SONAX. Sorry D. Gottwald from Zwickau