I've found with careful techniques I can clean pretty dirty cars with ONR. I read somewhere that you should only use Opticlean on mildly dusty cars (of course many use to say that about ONR).
My question is, where is the line (in grime) between using Opticlean and ONR?
Hope I got all the abbreviations right.
I read somewhere that you can add an ounce of OCW (Optimum Car Wax) into the bucket with your ONR wash and do a wash and wax. I haven't tried it yet but think I will soon. This lead me to another thought. I believe I remember that Optimum Products aren't terribly picky about order of application. So I'm guessing that putting on Optiseal after doing this wouldn't be a problem - right?
Dug around a UK detailing site and found this:
http://www.detailingworld.co.uk/forum/showthread.php?t=190214 (pictures are gone but still interesting to read)