The iridium tipped OEM spark plugs in the Nu 2.0L GDI I4 engine in a 2nd generation (2014, 2015, 2016, 2017, 2018 & 2019) Kia Soul can last up to 105,000 miles, but they should be checked and possibly also changed before that mileage. Check out my DIY tutorial for changing the spark plugs (with the compatible replacement part numbers) by clicking on the text link or thumbnail image below.
2014-2019 Kia Soul Nu 2.0L GDI I4 Engine Spark Plugs Replacement Guide
