Thank you for sharing! Please don't take this the wrong way but just a heads up to other owners who might consider switching, per Pennzoil:
Why is a GF-6B standard necessary?
ILSAC has always tried to make its standards “evergreen,” which means they are backward-compatible. Thus, when a new standard is activated, the previous standard becomes obsolete because the latest standard meets the needs of both new and prior engine technologies. However, the new 0W-16 viscosity grade has not been specified for most older engines, as most older engines are not equipped to operate with a lubricant at such a low viscosity.
For this reason, ILSAC determined the need for an ILSAC GF-6A standard, which is backward-compatible, and an ILSAC GF-6B standard, which is ONLY used for SAE 0W-16. Oils meeting the GF-6B standard will NOT be backward-compatible unless specified by an OEM, and this distinction will be noted clearly on eligible Pennzoil Platinum motor oil labels.