best location to drain coolant on nytro xtx

[GYTR GEARHEAD]

trying to figure out the best way to drain all the coolant out of the system head/block and front bulkhead cooler iam planning to replace the yamy 60/40 with toyota xtra long life coolant 50/50 and add water wetter and wire the rad fan direct with in line switch trying to fix the overheating issue on hard pack any suggestion ?

 

[weldion]

Loosen the hose that is going in the rad in the tunnel that is located behind the oil reservoir. I did that and used a industrial vac to take every single drop of coolant out of the system.