P&S Detailing Products P&S Detailing Products G1601 - Carpet Bomber Upholstery Cleaner (1 Gallon)

Does it need to be diluted or ready to go as it is

Can this be used to clean car seat foam that has the leather cover removed with urine odor? I want to submerge them in water and carpet bomber.

Can I use this on Alcantara seats ?

Is the 16oz version the same concentration as the gallon or is it already pre-diluted either 5 or 8:1?