I love this stuff, everytime I do an oil change I do 3 extra things, I clean my K&N Filter, Clean my MAF, and spray some Mopar Juice in my throttle body. I use this stuff at work to fix cars which are clogged with carb build up and basically anything your air filter fails to catch. I cannot believe how much of an improvement I see with using Mopar cleaner. The reason I use Mopar is because its the only bottle ive seen thats in a spray can. It can be picked up localy at your nearest dodge dealership and works wonders.
After alot of off roading and running with a K&N filter (great for sucking air bad for blocking crap) my intake manifold and TB turn a nasty black color, however after using a third of a can on my intake my truck runs smoother, comes to idle quicker and my fuel economy returns to normalcy. For anyone having fuel economy problems, rough idle, or offroads alot or lives in a dusty area I highly recommend Mopar - Combustion Chamber Cleaner.