Is it safe to use injector cleaner if your premixing?

I have a huge bottle of injector cleaner (Lucas oil to be exact) that I bought for my old car and wouldn't mind using some for the Rx8 to help get rid of some, seeing how I have no other car to use it on. I've been premixing since I bought the Rx8 and I wasn't planning on stopping.

hmmmmmmm... been wondering for a while and thought I could find something on here but no luck as of yet.

 

I premix too, when I use injector cleaner through the tank I skip the premix. No real reason why, that's just the way I always did it with my rx7's.

 

Hmm maybe I'll just do that. Kinda wish I could do both, but it doesnt sound like a good idea to mix all these things into a motor.