First off I'm new and I apologize if this is the wrong place. I have a 2004 1500 5.7 hemi with roughly 230,000 miles. I've been using Mobil 5w-30 it's whole life. Is it best to stick with that? Or is there something better?

 

I use Pennzoil High-Mileage in both Hemis. The 300 (5W-20) has 105K and the Ram (5W-30) has 135K.