10K mile OCI has been a minimum with my Toyota.
Here's the OCI history of my 07 Toyota FJ Cruiser w/227k miles on its 4.0L 1GRFE.
Dec 2010 - Amsoil SS 0w30 - 17,000 miles
Dec 2011 - Amsoil SS 0w30 - 18,700 miles
Aug 2012 = Amsoil AMO 10w40 - 12,200 miles
May 2013 = Amsoil AMO 10w40 - 14,000 miles
Mar 2014 = Amsoil AMO 10w40 - 15,000 miles
Nov 2014 = Amsoil ACD 10w30 - 14,200 miles
Jul 2015 = SuperTech Syn 5w30 - 10,100 miles
Apr 2016 = Mobil1 5w30 - 11,000 miles
Aug 2017 = Mobil1 5w30 - 13,000 miles
Oct 2018 = Mobil1 5w30 - 14,500 miles
Sep 2019 = Delvac1 ESP 5w40 - 11,000 miles
Oct 2020 = Delvac1 ESP 5w30 - 11,100 miles
Jan 2022 = Delvac1 ESP 5w30 - 10,000 miles
Mar 2023 = Mobil1 5w20 - 6900 miles
I have always totally ignored the OLM.
I bought it used in 2009 with 20k miles. Sump Capacity is 6.5 qts with larger than stock XG8A full flow filter I've been running since 2012 and the EaBP90 remote bypass filter (since Jan 2011) setup. It gets 99% local driving.
It has never and still doesn't leak or burn (consume) any oil.
It's never thrown a check engine light/code. Purrs like a kitten and gets the same 20+ mpg it has always gotten.
The only engine mx that's been done is: 1) I've changed the PVC valve twice, and 2) I changed the copper spark plugs every 50k miles.
"Nothing" the YT Toyota tech says holds true with my Toyota.