Time to change the spark plugs in my Dodge Caliber. I've been out of the spark plug market for some time. Many years ago, I always used Autolites, but the playing field seems much different today. I'm looking for something with long life to reduce maintenance tasks while still running smoothly. Chrysler recommends new plugs every 30K miles. I saw some Bosch at Walmart that get 4x the factory spec'd lifespan (I think), but I have never used them. They also had multiple prongs (electrodes I think is the correct term) and needed no gapping. Anyway, anyone have any replacement plug recommendations? Thanks!