Yes, but pointless!
If performance has dropped off enough on petrol for you to think it worth a shot, probably needs new squirters, and a bit of solvent through them wont do much.
If they dont need replacing, then for the effect the stuff has, again not a great benefit to using it!
But I' a sceptic!
Seriousely, Gas cars do suffer from the injectors not getting enough fuel through them to keep them at thier best, but TBH, if they are that bad, they are probably beyond help from an injector rejuvinator.
Follow the advice about warming the car properly on petrol before switching to gas, rather than letting the thing auto-switch as soon as you press the loud pedal; that should be enough to keep the injectors clear, but a good 'run' on FPF now and again, is always worth while, and fun, actually.
and that would be my starting point, a good 20minute run at highway speeds on FPF to get some petrol through the things; you'd have to do that if you stuck Redex in the tank anyway, so up to you if you do, really!