This is my first post, but I have thoroughly enjoyed this website with its vast amounts of information. I know alot of people constantly ask opinions on what is the best oil. I cant seem to make up my mind if I want to go synthetic or not. Here is my situation. I have a 2002 Dodge Dakota with the 4.7 V8. I have the 7 year, 100,000 mi powertrain warranty, which means I need to stick with a 3,000 mi oil change interval. I drive it to work daily, which is 10 miles, one way. Most of my driving is short trips, with an occasional long one thrown in from time to time. I currently have 8,000 miles on it, and have changed the oil at 900mi, 3,000, and 6,000miles. The first 2 oil changes were with Mobil Drive Clean 5w-30, the third was with Mobils Drive Clean Blend 5w-30. I want to stick with an over the counter oil, and was leaning towards going to Mobil 1 on my next change. However, with having to change every 3,000 miles, I wonder if I would receive enough benefit for the extra cost. I have also heard rumors of some possible sludge problems with this engine. I plan on keeping the vehicle until I run it in the ground. Please give me your opinions on which oil I should choose. Thanks everyone in advance for your time and thoughts.