So, these two posts caught my attention:
Looking at the specs, it is clearly less viscous than 5-30, 5-20 and 10-30 at 100c. With a VI of 128.
bobistheoilguy.com
Here's a virgin sample of High Performance Lubricants PCMO 10W-20. Starting TBN is 13.0. It has a good bit of moly and lots of magnesium. The aluminum is from the add pack.
bobistheoilguy.com
This HPL product appears to be a highly-additized, monograde SAE20 with long-drain capabilities. Yes, the price is high since it is a "high-end," low volume boutique product that you would have to run 10-15K miles in order for the cost to be comparable to OTC options. It is probably best reserved for out-of-warranty applications as well.
If my understanding is correct, this oil should theoretically offer better wear protection than most xw-20 oils on the market since it uses a 8cst base oil with no VII. Most OTC xw-20 oils have a base oil viscosity in the 5-6 cst range. The heavier base oil viscosity in the HPL 10W-20 equates to improved dynamic viscosity, which can be beneficial for bearing wear under high loads. Based on the calculations in
@Gokhan's spreadsheet, I think this product uses a heavier base oil than most 5W-30 oils. For this reason, I would
think that it can also be used in place of an API SP/GF-6 SAE 5W-30 product.
Tell me if I'm mistaken, but I think this might be a good unicorn product that actually justifies its boutique pricing. I am normally not a fan of boutique oils, but this one has caught my attention.