I'm currently running Mobil 1 10W-30 in my Toyota 4x4 22RE with 129,000 miles. This is after 2 ARX treatments. I'd like to try the Schaeffers and German Castrol if I can get it. But I'm not sure what weights to use. The truck did use about a qt. every 3,000 miles before ARX. I;m sure it still uses some, but I doubt as much. Any suggestions?