...every 2 days, head gasket? Car is taking longer to start up now. Looked under the oil cap it looks like a chocolate cuppucino...been doing this for like 2 months (yes ive been refilling liquid in the radiator that much and that frequent) checked the cap before was black but now cuppucino, is the head gasket the reason? i was told cyclinder 5 wasnt working properly on my fuel injection also, will fixing the head gaskett repair that too?