Wilkie wrote:Just a thought...who as ever changed the anti freeze on a regular basis.......???
There has to be a reason why there are so many Patrols pop their radiators..does the antifreeze changes its character after a certain age and generate more steam or or or ???
Just putting it out there..
Definitively a good idea to drain and change. I just did mine after 100 000Km. The coolant still looked very good ( nice clear blue tinted water came out ). I replaced with the antifreeze I originally got from Silvertons Radiators ( Nissan original price is ridiculous ). I bled the system properly and noticed a few mm difference on the dash temp gauge.
IMPORTANT !!!!!!...... stick to the mixing instructions !!!!! Rather slightly over dilute than under dilute as the coolant, if too strong, can have very negative effects on the metal in the motor !!
My system with the bigger radiator takes close on 13-14L of water. The coolant I use is a 50/50 mix ratio, but only used 6 bottles so am a little under the 50/50 mix.