Originally Posted by oledoc2u
its a grt gimmick, but that is all it is. If you were to send out a sample to a lab, from one of your oil changes, the results will be broken down with elements you didn't even knew existed in oil. They will also give you a recommended interval for oil changes based on this analysis. I know James knows this being in the bus business...I have had recommendations on my car oil up to 25K, but I wouldn't use that interval. Common sense tells you this is just too long...in the end, good quality oil, and common sense, you can't go wrong
Gimmick or not, common sense prevails, but his little car still does some pretty neat stuff. It recognizes your driving habits (see resetting throttle history), uses that knowledge to test oil potential drop in one of three steps - light, normal or hard driving - and then predicts when you should change the oil.
Gotta' give it some credit. It sure does try.