The OEM iridium tipped spark plugs in a sixth generation (2017, 2018, 2019 and 2020) Hyundai Elantra with the Nu MPI 2.0L Atkinson Cycle I4 engine can last almost 100,000 miles, but they should be checked and possibly changed before that mileage. Check out my DIY tutorial for the procedure (with the compatible replacement part numbers) by clicking on the text link or thumbnail image below.
2017-2020 Hyundai Elantra Spark Plugs Replacement Guide
