Searching the internet doesn’t reveal much here. Most of what I see are posts regarding tuned Focus RSs and Rangers. I’m curious about the one in my 2016 Explorer. I know certain engines are more prone to this but I can’t find much here. I’m using an API SP Dexos1 oil as a general measure, and I typically run 93 octane for various reasons (waaaay better driveability mainly). Like most vehicles it’s eager to upshift and hold a gear even under decent load. It does have an impressive amount of low-end torque, but also seems like an ideal situation for LSPI if there ever was one.