My car NEVER overheated, dosent burn a drop of oil, but it does go through antifreeze. The motor is a JDM 97 b18b into a civic hatch. I put less than 15k on it since i had it, probably like 10-11k.

Now im checking my radiator and its always full. My overflow though is ALWAYS empty after about a week-2 weeks...some times it takes longer. I have no drops on my driveway so i know its not leaking either.

Today I was tucking some wires and see on the front of my block a big wet spot...like my motor pissed its pants or something. Its right around the dipstick area and looks like it comes from the HG area all the way down to the oil pan, and about 6'' wide. Its all dry and i cant tell if it is oil or antifreeze. But i know it was not there when the motor was installed. I cant see the HG line because the manifold is in the way but tomorrow i plan to pull the mani to check it out. When i did a comp check it seemed OK...i believe 180's and 190's totally cold motor.

I know there is leak dye for AC systems...is there the same crap for antifreeze so i can run it through for a while then check with a black light. Im going turbo in a few weeks and i dont think boosting on a bad HG is a good idea.