Hi all! I'm new to this forum, followed a link off the Dodge blog because I want to pick the best oil to use. A few months ago I bought a 2001 Dodge Ram Van3500 with 5.2L engine with just under 150,000 miles on the odometer. Most of the daily driving, (till I find a good used camper to buy) is town driving from 5 to 25 miles one way. When I get my camper I will be towing and driving at least 600 miles one way to visit my grandkids. The owners manual says to use 10W30 and Mopar filter P/N 5281090. It also says to change every 3,000 miles or 3 months under certain conditions, which I currently meet, and will continue to meet when I get that camper. After reading Oil U, I think I should use a high mileage (van 18 years old and over 100,000k), synthetic oil but I am not familiar with synthetic oil and I am at a loss as to the weight ot type I should use. Also, I am thinking about this oil filter, WIX 51085XP, as it is designed for heavy duty vehicles that tow. Your advice is greatly appreciated!!!