Originally Posted by Doublehaul
Looked good to me...aluminum a little disconcerting...but I realized the vehicle is still new and breaking in. I'll call it good
first of all, thanks for posting this. i've seen a LOT of 5th gen 4Runner owners talk about how the engine can never ever see anything other than 20wt oil, which I don't agree with since the manual is specific that the engine can, and probably should see heavier oil for more severe use (among lots of other evidence it can safely use higher viscosities without issue). So to have you share a 40wt report is very helpful. Personally I run 5W-30 in my '19 Off Road, and will hopefully have a UOA to share at some point later this summer.
secondly, you have nothing to worry about with that AL number, in fact it shouldn't have been marked. the entire report looks excellent. as a reference, here is a link to a series of 0W-20 reports posted by a member on the 4runner.org site, and it just so happens their latest report was also an 11,000 mile run:
https://www.toyota-4runner.org/3403959-post168.html
the AL number is identical, and Blackstone even points out in the comments that the ppm is right in line with universal averages.
your iron is a bit above their universal average but honestly i've seen a number of UOA's for this truck that show ~2ppm FE per 1000 miles, or more. so i'd say you're good to go. wear metals on this engine seem to settle by 40k miles so yours may still be breaking in a little. doesn't look like the idling did a thing to hurt it.
if anything this report just goes to show that this engine will run on basically anything, happily. keep us updated!