I can't believe what Spark Plugs do for my engine! E3 spark plugs vs NGK iridium spark plugs. Acdelco platinum spark plugs vs Normal spark plugs. How to test a spark plug? What about NGK laser iridium spark plugs vs regular spark plugs in a future spark plug review. E3 premium diamond fire spark plugs vs Denso spark plug iridium. Also in a future test. spark plug comparison to find out what is best for your car. Today on Nates interactive auto we find out what is the best performance spark plugs and The best spark plug design. Also is autolite a good spark plug? People say e3 spark plugs cause damage but I haven't experienced that. #NGK #SparkPlug