The DURA-COATING TECHNOLOGY combo includes the DDE Spray Detailer, which provides a high luster shine to plastics and rubber surfaces, ideal for interiors but not recommended for seats, LCD screens, clear dash plastics, pedals, floor mats, or steering wheels, and can also be used on rubber tires; apply it liberally with a soft cloth or applicator pad to a clean, dry, cool surface, let it dry, and buff clean with a soft towel, or wipe off excess immediately for different results, and in engine bays, ensure thorough cleaning first, preferably with No Touch Engine Bay Cleaner, then spray DDE on all surfaces, wet or dry, close the hood, and run the vehicle for 15 minutes. The No Touch Engine Bay Cleaner is 50% stronger, cleans and degreases effectively, can be diluted 1 part cleaner to 3 parts water for newer vehicles without heavy oil residue, or used full strength for older, more worn engine bays with baked-on oil, simply spray and rinse, and for best results, follow up with DDE Spray Detailer.