They say Z16 is very durable, but takes a few weeks of application to really benefit form any good durabilty. Its considered a sealant type of dressing that actually penetrates into the rubber. For that, I think some members even recommend cleaning your tires often and no dressing for 3 weeks or so...
If you're willing to do all that, i don't see why not. I mean, the only reason I haven't is because I havent purchased it..
And as a matter of fact, I'm currently finishing my bottle of FX tire shine. Its a very good and durable dressing... So if you're currently using Mothers FX, wait till you finish the bottle, because its not a bad dressing either.