Does anyone know wether cleaning a MAF sensor on a 2007 Lexus IS250 is safe ? I have the CRC MAF sensor cleaner, and have heard it is a good product, but I have gotten conflicting info. on wether it is safe to clean it, or even recommended to ? On the CRC directions it says that it is not to be used on "some" Lexus vehicles. Can someone please clear this up for me ? Thanks