Hello Bitogers... One of my rides is a '06 Mitsu Eclipse GT. It is a 3.8l Mivec V6 6G75. The odometer is just over 74k at the moment. I've owned this car since it was new, and from the first oil change it has had Amsoil 0w30 oil. I believe it used to be TSO and then changed to SSO at some point. This current oil change was done inlate November '13 and the car was stored for the winter, and brought out in the spring. Ibused M1 AFE 0w30 because I needed something right then and Walmart stocks it. Anyway, the oil has a little over 4k of use on it. When I checked it tonight, it was about 1/2 at low. This car has never had ANY noticeable change in oil level for in the 8.5 years I've owned it while using the Amsoil. Is there something different about the M1 that could have caused to burn off some oil or something like that? There isn't any leaks, so it had to have gone through the engine. I'm sure I will plan ahead and switch back to SSO for the next change, but I am a little bit baffled at the fact that for the first time ever it was low. Is this common with the M1? What could be different to cause a change?