I think their is some confusion between OPC (Optimum Power Clean) and OOC (Optimum Opti Clean)
Optimum should do something about their naming. :doh: Heres some info I copy pasted for the Optimum. The TAW description I just typed a brief summary.
Optimum Opti? Clean is the ultimate one-step product. It cleans and protects all automotive surfaces in one step. Use Optimum Opti? Clean on paint, vinyl, rubber, metals, plastics, and even glass! You'll save time, effort, and money while achieving a clean, well-protected vehicle. Optimum Opti? Clean does it all!
Dilute Optimum Power Clean? up to 3:1 to safely clean leather, vinyl, paint, and plastics. Remove old dash dressings and tough residues from interior panels. Wipe away spills and spots from leather seats. Special polymers and emulsifiers break down contaminants with minimal agitation. Use full strength, Optimum Power Clean? cleans and degreases the engine compartment, cleans wheels, and wheel wells. This sophisticated formula dissolves bugs and powers through brake dust and oil to clean your vehicle?s dirtiest parts.
P21 TAW is for the entire exterior of the vehicle and is often used to safely strip the vehicle of LSP. It can also be used for engines, exhaust pipes, etc.