From SHELL, today:
Thank you for your recent inquiry and supporting Shell products,
In response to your inquiry, although other current late model Hyundai, turbo equipped vehicles, specify SAE 5W-30/5W-40, we do not recommend Shell ROTELLA T6 5W-40 for the Santa Fe Sport 2.0T. Hyundai Motors USA and Shell Oil, recommend either SAE 5W-30 or 10W-30 only. Conversely, you are free to use SAE 10W-30 Shell ROTELLA T5 synthetic blend. Other recommended oils are Quaker State Advanced Durability or Quaker State Ultimate Durability, in 5W30 or 10W30.
ED
SHELL Oil
From HyundaiUSA:
...using a 5W-40 weight oil in the Santa Fe Sport 2.0T could void the factory warranty should any engine or emissions problem occur during the warranty period. Hyundai USA strongly recommends the use of recommended viscosity oils found in your owners manual...
SH*T !!