Well it's almost time to change the oil again on my 06 Ford Ranger 4.0 V6. Last time I used Motorcraft 5w30 Synthetic Blend, and it's a good oil. I also used it in my Accord and my Explorer and my Explorer especially seems to like it. But it's gone up in price from $2.32 per quart to $2.48/qt. My Ranger uses 5 qts, so that's $12.40. For just about a dollar more, I can get a 5-qt jug of SuperTech full synthetic. Soo....which would you guys go with? I have no experience with any SuperTech products so I have no idea how good this oil is. I usually change the oil every 3,000 miles, which is usually about every 6 months. I only drive this truck about 36 miles per day, 3 times per week (108 miles per week) and it's mostly highway.