WM had just got the above new oil in , so I grabbed a jug for the Sonata DI :
Out : M1 10W30
In : PPPP DEXOS1 Gen 2 5W30
Engine feels smooth , sounds quiet and runs free after the new fill and gas mileage is maybe .2 MPG better (almost the same as M1 10W30 which is a thin 30 weight). Could be new oil change placebo effect - but happy to report my Hyundai 2.4L DI engine appears to like this new Gen 2 oil just fine ... Will run a 5K OCI then test to see how this new oil and engine are working together .