I change mine every year. The moisture in the motor box, is murder on that stuff. It's cheap to replace the cap and rotor ($40), and spark plugs are only about $3 apiece. So for $65 give or take, you know that, that portion of your ignition is "ready." I paid for the annual service provided by my shop. I did the cap and rotor this year. There is no way they had ever touched it. There was green corrosion on every piece of metal in there.
|