[wolfox]

Yeah, that's the post Katrina labeling that's come in recent batches from Castrol, and will be Amber in color. The real treat when you find the green stuff is that is smells like something you can drink - almost like Gummi Bears. It also is radiator fluid green in color, so it *will* tweak the head of your mechanic/Service tech. Keeping a half quart left over from a 4.5 quart fill for my engine in the back provides proof that you do not have anti-freeze in your crankcase. And who knows, you might turn another person over to the "Dark side" of oils. Wix is a good choice with this oil. Swap that filter out every 3-5K if you are a short trip driver with 5k mile oil changes. Or if you are a commuter, averaging long, lazy highway miles, swap filter every 7-9k with 12k mile oil changes with this marvelous oil.