Spray and apply
You can see here that Vinyl Revival has a very mild cleaner in it, just to make doubly sure it can bond to the vinyl.
Spray the Vinyl Revival into a clean microfibre applicator, applying it to a section at a time, in a circular motion. Make sure you overlap the areas you clean as you move around the tonneau. Once completed, wipe dry gently with a clean Dirty Deeds microfibre cloth. It's important to allow time for it to completly dry - at least 3 to 4 hours.