when to change spark plugs on 2007 Jeep Commander

When do the spark plugs need to be changed on my 07 Commander with 39,000 miles?

by in Clinton Township, MI on November 20, 2009
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2 answers 2 comments
ANSWER by , November 20, 2009
100,000 miles
COMMENT by , June 05, 2010
Owners manual says to change them every 30,000 miles
ANSWER by , November 20, 2009
Here is an online copy of your owners manual: http://www.jeep.com/en/owners/manuals/index.html Look under the maintenance section.
COMMENT by , November 20, 2009
Thanks for your help!