Q: Service light change plugs
My service light came on my Eos. So I called to make an appointment to service my car. They told me that last year I had my 30,000 mi. service. So now they will do my 40,000 mi. service which includes replacing spark plugs. I wanted to know why they need to change my spark plugs if they're rated for 40,000 miles. They said they recommend either 40,000 mi. or 4 years which is how long I've had the car. Do you think it's necessary to change the spark plugs at 25,000 mi. at 4 years? I don’t much about cars. Thanks
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