Just did a valve adjustment today and replaced a leaking cmc and took some pictures of my spark plugs while i had them out. Theyve only been in for a few months and #4 definately looks odd. The rest seem whitish.

In order 1,2,3,4. As a note, these are LS plugs. The moron at the autoparts store cant seem to get his parts right and i didnt know til later.

 

http://www.gnttype.org/techarea/engine/plugs.html

 

looks like there coated in oil and really white could be a lean condition, but you were saying they were the wrong plug correct? what plug was it you were using and was gap set right

 

look at the back page in the haynes maunuals, spark plug wear pictures are in color.

 

Dont have a haynes handy atm but ill look at it when i get home. I always had trouble matching up pictures and descriptions to my plugs but im sure its obvious the whitish ones are probably lean like everyones said in other threads but im not sure about #4. #1 looks a little black on one edge. I posted the pictures hoping people with good experience with spark plugs can tell me something about it.

It probably woulda been good to say i has a GSR when i mentioned the plugs in my car were LS plugs. LS plugs are gapped at .044. Was smogged and passed recently, fuel filter changed very recently and ecu was reset. Just did the valve adjustment yesterday so no results from after that will be had. No leaks from the valve cover seals as those are 6 months new and i saw no oil when i pulled the plugs. Oh and a compession test was done when i put those plugs in during the summer and was good. And i alwas run 91 techron.