I am going synthetic and decided on Rotella SAE 5W-40 after reading countless threads. I think I have the right one but just wanted to check. Here are a couple of pics. It says advanced soot control across the top in the first pic. Is this right? That round label on the back {i forget what its called} is hard to see in the pic but it says API SERVICE CI-4/SL across the top and CI-4 PLUS across the bottom.