I have a friend who works at Hyundai turning wrenches. His family wouldn’t have much to eat if it weren’t how fast he has learned to swap engines for warranty claims. It’s easier for them to pull off the bumper /crashbar, lamps, rad/condenser and rad support than try to wrestle an engine out and in without doing so.
Every Hyundai Kia dealership has an engine junkyard outback, its not the greatest look but most prospective buyers dont even know what a long block looks like. It’s Probably so they can pick nuts and bolts off them if needed. or they keep them until Hyundai corporate pays up.
This all being said I’m with
@PWMDMD and would be using something other than 0w20 while covering my butt for a potential warranty claim. Recent history with this company tells me they do whatever it takes to sell units at max profit and would be very cautious about what their “engineers” recommend.