Holy moly! Mngopher wasn't kidding when he said the new Havoline 5w-20 formula is dark. I did the first oil change on my '04 Mazda 6i today (1200 miles) and filled with Havoline 5w-20 (that I had purchased intitially for my F150)and I had to do a double check to make sure the bottles were all sealed. Man is that stuff dark! I kind of feel cheeted by not seeing that fresh golden blonde oil on the dipstick. I was going to sample te factory fill and send it in but I passed. I'll sample this fill when I change it in 2000 miles just to start to establish a baseline. I want to get 2 changes done before I bring her in for the first 5,000 scheduled service.