Thanks for the welcome, guys. By the way, my engine did blow up due to sludge build-up. Had it replaced with a rebuild through a Company called Accurate Engines. They offer a 100,000 mile engine warranty, which is why I went with them. They have rebuilt "several hundred" 2.7L engines, according to the Service Center Manager. He claimed that the 2.7 was their most popular rebuilt engine, due to high demand. They do require oil changes every 3000 miles to keep the warranty in effect. Also, they recommend 5W30 oil year round. I'll check to see if I can run synthetic oil, like Mobil 1. Don't want to risk voiding the warranty.