It’s fake news lol.
this was the funny part
“Because of these high pressures, Paul says fuel can easily leak into the valve cover and into the engine oil.”
most gas engines are direct injected these days.
edit: not a bad idea to ditch the Hyundai tho btw, they do have engine issues but it’s not from the fuel system. It could play a part but if it’s truly oil dilution then they have piston/ring/block issues with their engines