The copper OEM spark plugs in a second generation (2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 & 2015) Toyota Tacoma pickup truck with the 1GR-FE 4.0 liter V6 motor should be replaced every 30,000 miles. Take a look at my DIY instructions for checking or changing the engine spark plugs by clicking on the text link or thumbnail image below.
2005-2015 Toyota Tacoma V6 Engine Spark Plugs Replacement Guide
