I've been driving a 2009 Kia Sportage manual GLS with 120,000 km on it. I've always used 5W-30 engine oil, but recently it seems to be burning oil a bit. Should I switch to 5W-40 oil for maintenance? Has anyone experienced this before and can share some insights?

Yesterday, I went for maintenance, and they usually use 5W-30 oil. But this time, the technician used 5W-40 oil. I'm not sure if this will have any impact.

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I've been driving a 2009 Kia Sportage manual GLS with 120,000 km on it. I've always used 5W-30 engine oil, but recently it seems to be burning oil a bit. Should I switch to 5W-40 oil for maintenance? Has anyone experienced this before and can share some insights?

Is the Mobil 5W-40 oil I used today not as good as 5W-30?