Mike Morriss
Well-known member
- Joined
- Dec 25, 2001
- Location
- Ponca City, Oklahoma
- TDI
- 99 New Beetle, 91 Vanagon TDI conversion, 05 New Beetle, 2014 Jetta Sportwagen
VW says to use phosphate free coolant. I am putting coolant into a Vanagon that I have transplanted a 1995 1Z TDI engine into. Since I don't know what kind of coolant was in the engine before but I DO know the rest of the cooling system had ethylene glycol (the green stuff) in it, and since I have been told if a coolant system has had green, going orange (the new stuff) requires complicated conditioning, I am prone to go back with Prestone ethylene glycol coolant.
I was trying to find out if Prestone ethylene glycol coolant is phosphate free and found this at http://www.prestone.com/tips/page7.htm
Comments please!
From http://www.prestone.com/tips/page7.htm:
Q: Does Prestone® Antifreeze/Coolant contain phosphates?
A: Some European automobile manufacturers request that a phosphate-free antifreeze be used in their vehicles. This issue is related to the extremely high mineral content of the water in Europe. If you were to mix an antifreeze that contained phosphates with the type of water they have in Europe, it may produce deposits that can settle in the cooling system and promote corrosion. However, in North America we do not have this type of water problem. Typical North American coolants have contained phosphates (which is part of the corrosion inhibitor package) for many years. Therefore, the question of phosphates is a non-issue here in North America. Prestone® Antifreeze/Coolant is completely safe for use in both foreign and domestic vehicles. For those consumers who would feel more comfortable using a phosphate-free antifreeze, our Prestone® Extended Life 5/150 Antifreeze/Coolant is phosphate, silicate, and borate free. This coolant uses a special chemistry and technology that extends the life of the corrosion inhibitor package so that it lasts for five years or 150,000 miles (whichever comes first), and is safe for all cars and light trucks (old or new). Prestone® Extended Life 5/150 Antifreeze/Coolant has been approved by General Motors under their DEX-COOL® specifications and is compatible with other DEX-COOL® approved coolants.
* DEX-COOL® is a registered trademark of General Motors Corporation.
I was trying to find out if Prestone ethylene glycol coolant is phosphate free and found this at http://www.prestone.com/tips/page7.htm
Comments please!
From http://www.prestone.com/tips/page7.htm:
Q: Does Prestone® Antifreeze/Coolant contain phosphates?
A: Some European automobile manufacturers request that a phosphate-free antifreeze be used in their vehicles. This issue is related to the extremely high mineral content of the water in Europe. If you were to mix an antifreeze that contained phosphates with the type of water they have in Europe, it may produce deposits that can settle in the cooling system and promote corrosion. However, in North America we do not have this type of water problem. Typical North American coolants have contained phosphates (which is part of the corrosion inhibitor package) for many years. Therefore, the question of phosphates is a non-issue here in North America. Prestone® Antifreeze/Coolant is completely safe for use in both foreign and domestic vehicles. For those consumers who would feel more comfortable using a phosphate-free antifreeze, our Prestone® Extended Life 5/150 Antifreeze/Coolant is phosphate, silicate, and borate free. This coolant uses a special chemistry and technology that extends the life of the corrosion inhibitor package so that it lasts for five years or 150,000 miles (whichever comes first), and is safe for all cars and light trucks (old or new). Prestone® Extended Life 5/150 Antifreeze/Coolant has been approved by General Motors under their DEX-COOL® specifications and is compatible with other DEX-COOL® approved coolants.
* DEX-COOL® is a registered trademark of General Motors Corporation.