Since we have no idea what’s in these secret formulations, are we sure they won’t damage plastic parts like chain guides? I didn’t think so.

You can’t stop the leak in a cracked seal by softening it.

Sometime, some of these products work. Mostly, if they do anything at all, it’s more harm than good.

There’s a new mechanic-in-a-bottle born every week because there’s a sucker born every minute. They target fools and desperate people, sometimes relieving then of their last 15 bucks.

Other than that, these products are great!

Just my opinion.