02-07-2014, 11:09 PM
(02-07-2014, 09:34 PM)ArmzSC6 Wrote: Sounds like you've got a coolant or airflow problem there Niall. The thermostat is set to open at 83 degrees on a 6 so I'd be changing this as well as the rad for a nissens one. Also why are you using just water? Coolant helps extract the heat faster from the block (hence it's called coolant) and reduces hot spots within the engine.
For the record - that's absolutely not true at all.
"Coolant" is simply there to lower the freezing point and also as a corrosion inhibitor. Ethylene Glycol/Triethylene Glycol for example has a specific heat capacity of one half of water! That means it can carry half as much thermal energy given the same temperature rise as Water alone can.
Ethylene Glycol *does* increase the boiling point, but it's rarely needed since the pressurized cooling system does a nice job of raising the boiling point too!
The main point is that putting Anti-freeze in will not improve your cooling system, it's merely there to inhibit corrosion, harvesting of bacteria, and drop the freezing point.
