Ford Ranger Spark Plugs At 178K Miles

As crazy as it sounds, this set of spark plugs I just replaced on my Ford Ranger has 178,000 miles. The plugs were so rusty on  the outside that I was worried I may have problems removing them. Nah, it was a piece of cake. Looks like I got some oil fouling and major electrode erosion going on on #5 but otherwise things look OK.