Bought one of these off ebay a few weeks ago for S&G. http://www.obd2tuner.com/oto300-engine-o...ter-p-1767.html NOPE, i did NOT pay that...about the same I paid for the BugA Salt that should be here this week (again for S&G) Colorado has about 7,500km on the current oil, OLM shows 52% remaining. Amazing magic numbers tool says that the oil quality is "2". Wife's Captiva has about 1,500km on the oil post camshaft swap and rockers...it too showed a "2" Plan is to keep monitoring the Colorado down to 0% OLM, and see where the amazing magic numbers tool ends, and use that for the Captiva. I don't trust, nor believe the numbers generated. Having done a little bit of research, I DO think it will give me a head gasket/coolant leak warning, and maybe not much else.