Hey everybody, just got a used 2010 Mercury Milan Premier front-wheel drive 3.0 V6 with 36,000 miles. I've been driving it a couple weeks now and I absolutely love it and want to keep it forever. It's perfect for my needs. My question though is, should I stay with Motorcraft for my upcoming 37,500 mile service, or go another brand? Currently it has Motorcraft semi-syn 5w20. I was thinking about going full-syn Motorcraft or another brand, or maybe just stay semi-syn Motorcraft for the price savings. I drive probably 65% highway and try and baby it as much as possible. I thought Maybe Pennzoil Platinum or Mobile 1 0w20 might be good, especially for the possible fuel economy advantage of 0w, but I wasn't sure if the lighter oil might hurt long-term engine durability. I ordered an oil analysis kit a couple days ago from Blackstone labs as well. Any thoughtful feedback would be much appreciated.