The iridium tipped OEM spark plugs in a first generation (2001, 2002, 2003, 2004, 2005 & 2006) Acura MDX with the J35A or J35A5 3.5 liter V6 engine can last up to 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 spark plug and ignition coil part numbers) by clicking on the text link or thumbnail image below.
2001-2006 Acura MDX Spark Plugs Replacement Guide
