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Old 12-05-2000, 10:31 PM
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Mr. BILL Mr. BILL is offline
Ghoulardi Rules!
Join Date: Aug 2000
Location: Austin, TX
Posts: 576
I have noticed a dark brown stain coming from the #4 (from the front)exhaust port coming out where the block meets the manifold on my '90 300SE.

I have kept an eye on it and it seems to have gotten a little darker. Would this effect idle or fuel mileage? Is this anything to be concerned about?



91 300E 120K
90 300SE 275K (sold)
92 BMW 525iM 120K
90 BMW 525iA 175K
85 300D 175K (sold)
84 300SD 245K (sold)
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