Ethylene glycol mixed 50-50 with water will put you right around 230 degrees boiling point, Engine Ice (propylene) will put you around 265 degrees, last I checked. You could even go to Evans waterless coolant and see boiling temps well above 300 degrees. We could debate this all day, but one thing to keep in mind is that it is the water, not the antifreeze itself that cools. Also keep in mind that tap water is what is destructive and leaves mineral deposits over time that will reduce your cooling systems' efficiency. Engine Ice uses deinonized water, which does not leave harmful deposits. Ethylene glycol is also lethal - one tablespoon can kill a small animal, a quantity of this chemical can lead to coma and/or death. Not so with propylene gycol. Because we deal with a number of different customers with different opinions, we carry both. However, POWERHOUSE will always use deionized water when mixing up our own 50-50 green antifreeze. Whatever you choose, remember that it is the type of water mixed with your choice that can be harmful over time to your cooling system. And always remember to dispose of regular antifreeze properly - we are required to keep a separate 55 gallon drum for waste antifreeze, which is disposed of through a chemical waste company - our paperwork for this has to be filed and kept on hand. Check your local laws - many gas stations and auto parts stores are mandated to take waste antifreeze.
If you do have an issue, modified thermostats, different or relocated fan temp switches and more than one fan can help. You can also just get a regular toggle switch and run it to the fan temp sensor and flip it on when needed. . .
