2005 Ford Taurus SEL, 65,000 Mileage, 6 cyl 3.0 L. My question is : What is the correct gap size that my spark plugs should be set to? I have checked my engine spec guide and also the sricker guide under the hood but neither specifies what the gap size should be. Please let me know as soon as possible. I have had the emmission test ran on my vehicle and now i just need to change the spark plugs. I cannot afford to take my vehicle to the Ford dealership to have them changed. Thank you very much. :? :)