Attached are a couple of pictures from an oil filler cap view of a Honda J series engine.
HPL EC was used starting in June 2022 and ran with fresh Mobil 1 HM 10w-30 for 2500+ miles, oil and filter changed and a second run with Pennzoil 0w-40 + HPL EC is currently in the vehicle 2000 miles on current OCI, Ratio of Oil to HPL EC is slightly more than 1:5 recommendation.
I know this is an area of low oil flow, but the best comparison I have.
HPL EC was used starting in June 2022 and ran with fresh Mobil 1 HM 10w-30 for 2500+ miles, oil and filter changed and a second run with Pennzoil 0w-40 + HPL EC is currently in the vehicle 2000 miles on current OCI, Ratio of Oil to HPL EC is slightly more than 1:5 recommendation.
I know this is an area of low oil flow, but the best comparison I have.