Hi, everyone. Just thought I'd drop this here. I'm an OCD nut, so that's why the interval is so short, as usual. Recently switched from Motorcraft Synthetic Blend over to Kendall Synthetic Blend because it's basically the same oil and I get it a fair bit cheaper. Results pleased me. Old 5.4L 3v (time bomb engine) seems to be doing well for approaching the 200k area.