The OEM iridium tipped spark plugs in the MIVEC 2.4L I4 engine of a 3rd generation (2014, 2015, 2016, 2017, 2018, 2019, 2020 & 2021) Mitsubishi Outlander SUV should be changed every 105,000 miles. Check out the DIY tutorial for the procedure (with the compatible replacement part numbers, gap size and torque specifications) by clicking on the text link or thumbnail image below.
2014-2021 Mitsubishi Outlander Spark Plugs Replacement Guide
