Thanks Rod Knock for the handy summary above.With pretty much any off the shelf oil there will at least some carbon buildup inside the engine, no matter how often you change the oil. I don't know of any other oil that has the solvency of HPL. You can't go wrong with HPL, that's for sure.
By the way, go to Walmart and pick up the new FRAM FE2 oil filter and put it on the HEMI. It's an awesome filter that looks like it's actually manufactured by Champion Labs for FRAM. It's the same filter as Royal Purple 20-820 and AMSOIL EAO-11, but it's painted differently.
As for the best HPL picks for 5W-20:
Keep in mind that they all have the same cleaning ability, regardless of price:
The above would be my top pics. Hopefully @High Performance Lubricants has a few minutes available to chime in. I know they are pretty busy with orders, new contracts, and generally expanding and growing their business like never before.
- HPL PCMO 5W-20 - Group III + AN + Ester - API SP/Dexos additive package
- HPL NO-VII PCMO 5W-20 - PAO + AN + Ester - API SP/Dexos additive package (No VII polymers)
- HPL NO-VII Euro 5W-20 - PAO + AN + Ester - Euro VW502/Porsche A40 additive package (No VII polymers) - this one is the ultimate motor oil IMHO.
I didn't see any "High Mileage" oils available from HPL that treat engine seals to help prevent internal and external oil leaks.
If HPL starts making a premium high mileage 5W-30 oil, with PAO + AN + Ester + Seal conditioners, I would buy it and stock up on it.