I actually posted a thread on it here a while ago and no one had really heard of it yet. I saw it in a magazine. I think that it's a useful tool, but a bit pricey. It doesn't give the actual numbers that a real oil sample gives, but it gives a general idea of what's going on. If the price were to come down a bit, I might consider it. Maybe if it becomes more popular the price will come to where it is reasonable. I would LOVE to know how it turns out for you, though. Please post here when you have some info.