Auto-Rx will clean out third party additives so adding something else to Auto-Rx will not be of help to your engine.When Auto-Rx cleaning is finished you
can add another product without a problem.
It's a good idea not to mix two chemistries when both are active in your engine at same time.
can add another product without a problem.
It's a good idea not to mix two chemistries when both are active in your engine at same time.
