1994 BMW 318 Oily Spark plug threads, very rough idle

1994 BMW 318
15,600 MILES • 4 CYL • 2WD • MANUAL
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S4HINDS
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the two spark plugs closest to the front of car have oily threads and car idles very rough, but runs very well. What all do i have to do to fix the rough idle and oily threads?
Feb 25, 2010 at 3:46 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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