Originally Posted By: SR5
OP, thanks for the UOA, it all looks fine to me.
This UOA was Edge but the previous 4 were M1 and you can see this in the typical Magnesium and Calcium detergent mix used in M1, while the Edge leans heavy on Calcium.
To be honest I can't see any significant difference between the M1 and the Edge. Look at the Edge iron wear numbers (19 ppm) and the Edge KV100 viscosity (8.66 cSt), in both cases I can find previous M1 results that are both higher and lower.
The zinc levels are similar at about 750 ppm, with maybe a slight advantage to the Edge. Also the TBN retention is similar all finishing in the 2.8 - 3.8 range, with maybe a slight advantage to the M1. They both have much the same Moly at ~ 70 ppm, but the Boron prize goes to the Edge (~120 Vs ~30 ppm).
I would say both the M1 and the Edge are doing a good job and performing much the same. No big surprise here given they are the premium products from two name brand companies. I would happily use either 5W30.
Thanks for the feedback SR5, much appreciated!