Originally Posted by Eandras
If you read through the forums there is a lot of great advice. BobbyG, Setec astronomy always have good advise
Aw, shucks--that was nice of you!
Originally Posted by Djshadyad6
How do you guys know which product to use on which car?
It's not really a matter of matching the product to the car, as others have said, it's a matter of matching the product to the task.
If you're polishing you can use various grades of polish depending if you are trying to remove large defects or minor ones. If you're cleaning, if it's fingerprints you might use a QD, dust you might use a waterless, dirt you might use a rinseless, and mud you would use a hose.
IMO it's more important to understand the processes involved and how to apply each rather than what brand, etc. (as we used to say a long time ago on another forum process > product).