2 of 2 people found the following review helpful
decent replacement spark plugs,
April 23, 2009 P. Smith (Las Vegas, NV, USA) - See all my reviews
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This review is from: NGK (7100) ZFR6FGP G-Power Platinum Spark Plug, Pack of 1 (Automotive)
Put them in a 06 Jeep Liberty and went for a 600 mile jaunt. Right away we noticed it ran much smoother.(30K on the odometer)Got close to 20 mpg running between 65 and 75 mph, loaded with stuff. Just to be fair, we are running full synthetic lubs in everything now. Very cool!