I have a similar problem - my Nissan D40 2.5ltr diesel 4x4 is losing a small amount of coolant (about a cup every 200 km) and I can't find out how.
I've had 2 pressure tests carried out and they both showed nothing.
There is no smoke
No over heating
My truck is built and used in Thailand and has no heater fitted as standard.
I'd be most grateful if someone has gone through this experience and found a solution.
Wednesday, May 27th, 2015 AT 4:44 AM