Well, I have to say I was skeptical of this being some kind of snake oil remedy. But, I have to say, the ticking sound I noticed (and suspected as a deteriorating injector) has halted. I bought 2qts of Howe's Meaner Kleaner and treated my first tank with a double shot (8oz vs. recommended 4oz). I will switch to 4oz starting with the next tank. It could be placebo effect, but it was so pronounced and so immediate, it's hard to believe it to be coincidence. I suppose time will tell. In the meantime, chalk me up as a fan of this product.