I checked my tranny level yesterday I'll be darned the manual don't show what level a or b on the stick so I looked on every forum I couldn't find it and there seems to be a lot of confusion on this forum as well so I called my buddy(mechanic) at ford he said for the 2018/10 speed you want to be in the (b) hash mark area NOT the (a) so thought I'd share that for people like me that like to do their own maintenance.
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Sent from my SM-T813 using Tapatalk