I have a d16z6 with i/h/e and about 135,000 miles on it.. It seems like there is a slow coolant leak but I never notice ANY problems. But I am a tiny bit of a noob still so anyone like to throw some tips/ info my way??
headgasket maybe??

 

Does the oil look like frothy chocolate milk? Is the coolant oily?

 

the oil looks great.. and same with the coolant lol..

 

popular places where that happens is the lines on the left of the intake manifold. water drips down and evaporates on the hot engine surface. try checking to see if there are marks there. Also the rubber on the radiator cap could be cracked and water evaporates out of there or onto the hot radiator and u cant see it leak. it evaporates.

 

wow, didn't even think about that. thanks i'll go check it out now!