I was checking the resistance on my coils today because of misfiring, read about it when you check my other thread:misfiring in gear 1-4 but not 5 here:http://forums.bimmerforums.com/forum...d.php?t=547473 i checked in each spark plug hole to see how it looked. I found coolant in 3 spark plug holes: cylinder#'s 2,5,6. Spark plug #6 was entirely covered in coolant would this cause a misfire. What causes this coolant to enter the spark plug hole?
When you say "brown gunk", does your oil look like chocolate milk? If so, you are getting coolant into your oil. A blown head gasket will do that but also a cracked or warped head will, too. An old way to check it is to take the radiator cap off and look into the resivior tank to see if you have bubbling - that would indicate that you have a leak of compression into the water jacket.
Have you been having overheating problems or run the engine hot?
Antifreeze really cuts down on the lubricity in your oil...Even if you have a little in there, you are really stressing your connecting rods, piston rings and main and rod bearings...better have someone check it out immediatley.
i think the oil could look good but just the coolant would turn into chocolate milk. this happened to a friend's neon. those cars are junk.
It can go both ways and both can be spoiled, either way it is a very bad thing. chocolate milk is from the oil going bad, not coolant going bad. If your coolant can only be described as chocolate milk, get out from under your car or sell that bitch ASAP.
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