My truck is a 2008 1500 Sport with the 5.7 non-eagle. It requires 5w20. Not trying to start a pissing match. That's what the manual and the fill cap on the engine says. Wife's truck is and 04 1500, it says 5w30. Somewhere in between is the switch.
No worries. I had an 04 and my 03 engine both say 5w-30. I also know the cam phaser and MDS solenoids like the 5w20. So I suppose it makes sense that when they went to MDS they switched to 5W-20. Thanks for the correction.