Just purchased 08 C14 with 7400 mi. on the clock. While looking over the maintenance sched. I see Kawi. calls for the spark plugs to be changed every 7500 mi. WHAAAAAT?? My normal service routine is every 15K -16K. At what mileage has anyone had a plug fail? Tell me it isn't so.
I went to the stealership at 7500 miles and asked if the plugs needed to be replaced at 7500 miles and they told me change them at 12,000. Now I'm on the internet looking for the best price/plug to make my Connie purr.