Hello everyone I am looking to use best upper cylinder lubricant. I see there many upper cylinder lubricant Amsoil upper cylinder lubricant, Lucas upper cylinder lubricant and injection cleaner, Lucas motor treatment, Gumoutall in one, Gumout high mileage regane and gumout multi system tune up , Rislone upper cylinder lubricant, marvels mystery oil, motorkorte ucl, redline s-1 and many other.? Which best upper cylinder lubricant ( I am trying cleaner intake valve using crc intake valve cleaner next oil change for my Honda Pilot 2014. ) need upper cylinder lubricant so what carbon not burn will stick cylinder upper lubricant to minimum cylinder wall scratches. I will using Exxon or shell 93 ( premium fuel for cleaning time). ? I will looking best one market