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Old 04-17-2012, 04:05 PM   #1
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Member#: 226211
Join Date: Oct 2009
Location: Europe
2002 impreza WRX JDM

Default reading spark plugs

sorry for low quality picture.
I need your help: how do you think, what can we say with those spark plugs? does the engine consume oil/water? lean running or reach? does it have predetonation? there is #1 to #4 from left to right. as you see #2 and #4 have some kind of white color on the top. that white color is only from one side of spark plug, another side of those two plugs are normal light brown color. also, on #1 and #3 there is little amount of oil in thread and washer area.

thank you in advance!!

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