Below is the fourth change in my Focus ST 2L Ecoboost, filter was a Royal Purple. Refilled with the same oil and a Fram Ultra. The previous two analysis were Pennz Platinum 5w-30 and motorcraft filters. My intent is to do two 8k changes and one filter. It looks like this oil kept shearing in line for longer runs and the TBN was high enough to support a longer run.
Anything else I missed or should be concerned with since you guys are much more versed in this than I am?
Anything else I missed or should be concerned with since you guys are much more versed in this than I am?