Ok,
Here are the plugs. Don't know how old they are since I picked up the car in October I've only put about 4,000 miles on them. Mostly city driving with an occasional freeway jaunt [ 1 1/2 hr max]
Plugs 1,2 & 3 look like they are burning the same...#4 tip looks different....
#1 has a special problem...a big problem...look at the threads...brown...
well I don't know why except that somebody [not me] cross threaded that plug and the new NKG won't even go in half way...the threads in the head are clean about 1/2 way in, but the lower 1/2 are brown...
I noticed something felt funny when I was backing it out , it didn't feel like #4,3,2...you know, crack it loose and spin it out with fingertips...
Why me?.......
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