Looking for VCM info

I’ve been reading through posts, and kind of just want an answer without continuing to dig and trying to understand.

I have a 2013 Pilot. It has 200,000 miles. It seems to run pretty great, and I’d like it to continue running great.

(When the oil change interval tells me I have about 15% left, the oil level seems low when I check.)

I’ve never installed anything VCM related. Should I? What are the risks and rewards? Which is the best to use and why?