Quote:
Originally Posted by eleven14
Yup, that's how they were outfitted on the manufacturing floor, definitely the original plugs. I've never changed mine (2008 w/ 115k, bought with 35k on it) but I need to add them to the list.
What'd you replace with?
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I saw about a lot of recommendations, and I was tempted to just go with the original equipment, but I ended up going with Denso Iridiums IKH20's. "Iridium Power!" is what it says on the package. Not expecting any power increase, but they were only about twice as much as copper and hopefully they'll last longer.
It was about a medium PITA to change the driver's side. The passenger side was easy. The only problem I ran into was that the originals had this black sticky stuff on the threads, maybe oil, although I don't see any valve cover gasket leaks. When I put the new ones in they seemed to go in harder than I expected. I've seen the hand tight and then a 1/4-1/2 turn, but if I did that these wouldn't be seated so I turned them down further than that, worrying all the time about the aluminum head. I think the gunk was in the thread and that made them turn for a while with at not hard, but not soft effort.
I didn't really notice any change in how the engine runs so as worn out as they looked, the old ones were still working pretty well.