NexusG has filled up entirely TSDZ2 with car engine oil for cooling purpose.
"It runs well and much quieter, even if I have a brass gear !
The oil plays both the role of coolant and lubricant.................
.........It doesn't avoid the increase of oil temperature at continuous high power (I was able to reach more than 80°C at 750W for long period)
But... the oil have a thermal inertia and it may prevent the winding to burn as there are in direct contact."
"It runs well and much quieter, even if I have a brass gear !
The oil plays both the role of coolant and lubricant.................
.........It doesn't avoid the increase of oil temperature at continuous high power (I was able to reach more than 80°C at 750W for long period)
But... the oil have a thermal inertia and it may prevent the winding to burn as there are in direct contact."