Babajoon

My acura Cl, 2.3-1998 is loosing coolant at a rate of 26 OZ a week. I have had pressure tests (with engine running and engine off) and both tests indicated no leak (pressure was holding at 15 PSI ). I also had a chemical test done for possible head gasket/cylinder problem and the result was negative ( no head gasket/cylinder problem). I have changed both upper and lower raditor hoses and tested overflow reservior tank for possible leak. Could someone out there help? Mechanics are mystified and have no answer for me.

simplyredvw

Have you had the radiator cap tested or checked?

Babajoon

Radiator cap was replaced with a new one a week ago.