http://www.greenpower888.com/eng/1/qna/faq.html
Bought from autobacs one. Cause the batt dying already. Hoping that its due the lead sulphate stuffs on it and it can help revive the batt.
Just installed only and under a partial blind test (just told my dad its supposed to help revive batt, don't know if it can work), he says the van feel slightly more powerful and better idling speed.
I am surprised cause I myself have no idea that it can make the van feel more powerful, he also don't know. Looks like it may not be a snake oil product afterall.