RichP
NAXJA Forum User
- Location
- Effort, Pa
Whats the story of hoat coolant or Hybrid Organic Additive Technology. Somebody added normal coolant to a HOAT system on a 2003 rubicon.
HOAT coolant
- Thread starter RichP
- Start date
OT
NAXJA Forum User
- Location
- Jensen, UT
I know you shouldn't open the cap when the coolant is hoat.
You might get a burn.
You might get a burn.
RichP
NAXJA Forum User
- Location
- Effort, Pa
Found some info. This may be of interest to some.
Background. Several years back, carmakers, feeling the push from new car buyers who like the words “low maintenance,” decided that 3-years and/or 30,000 miles was not a sufficient service life for coolant. The search began for a longer life product. In 1995, GM converted its new cars over to Dex-Cool®. That product, manufactured by Texaco, is a non-silicated organic acid technology (OAT) coolant designed to provide 5-year, 100,000-mile service (since upgraded to 5-year, 150K miles—but not for Saturn). Industry watchers expected that DC and Ford would soon jump on the OAT bandwagon. That didn’t happen. Instead, after running tests of their own, they decided to stay with what they had and research the options a little longer. To learn more of DC’s and Ford’s concerns about OAT, read “Coolant Controversy” and Technical Correspondent Paul Weissler’s “OE Makers Put Brakes On ‘Orange’ Coolants” as it appeared in the May 1999 issue of Automotive Cooling Journal.
What’s a HOAT? Hybrid OAT in this case means it has a traditional Ethylene Glycol-base, with a single OAT inhibitor and is moderately silicated. The version now being installed by DC, and tested by Ford, is based on the German BASF product, Glysantin G 05. It has been used in extensively in European Mercedes Benz and other manufacturer’s vehicles since the late 1980’s. New users expect that it will provide the 5-year, 100K miles coverage they desire. G 05 proponents believe that its moderate dose of silicates provide greater aluminum protection than a straight OAT while still being water pump friendly.
Glysantin has been used in European cars and truck for several years
Where to get it. Manufactured by Valvoline® (Zerex®), for now the product will be available only as DC’s MOPAR®. If Ford adopts it, expect it to be sold under the Motorcraft® brand. However, you may want to also try your local Mercedes Benz dealership. None of the current Zerex, Igloo® or Pyroil® products are G 05, but it will be available as a Zerex product in the near future. The MOPAR long life product is orange in color; Ford’s, if adopted, will most likely be gold. Initial laboratory results indicate G 05 is compatible with traditional green product, but mixing with too much green may lower the coolant life. Mixing G 05 with Dex-Cool is probably not wise. Ford is said to be running extensive fleet tests to better answer the compatibility question. (Hopefully, the Snoopster can share a copy of technical paper with you in the future.)
Why the secrecy? Why do I, an industry snoop and tradeshow gadfly, have to be the one to bring you this news? Why is it that the only printed material I could find about this “new” product (Glysantin at that)—written in English—was on a Latvian web site? (Latvia??) Could it be that none of the OEs really want to shine a light on their coolant products right now? Could there be a little consumer-based testing going on? Maybe.
Look at the variables!!! But can you blame them? In their effort to meet higher emission and fuel mileage requirements, look at the variables auto makers have to contend with: both gas and diesel engines functioning at higher than ever operating temperatures, coolant flow rates and pressures; aluminum radiators made out of a slew of different aluminum alloys and by several different manufacturing/brazing processes; copper-brass radiators constructed with everything from high-lead through lead-free solders; umpteen different hose materials; numerous metal components and all types of exotic seals and gaskets. Plus, they always have to be prepared for unknowing consumers and technicians subjecting a system to highly corrosive top off water. Automotive antifreeze does not seem to be an easy business to be right now. In any case, it’s good news for service businesses that know their stuff. Car owners, especially those owning more valuable vehicles, need you! They may not know it nor be willing to admit it, but they really need you! $$$
Editor’s Update: Valvoline has added a G 05 Technical Bulletin to their website. Starting at www.valvoline.com, select “Products” from the left-hand navigation bar; from the drop down options labeled “Choose Product Category,” select “Cooling System Products” at the bottom of the list; push the button labeled “Technical Bulletin.” Notice that different from Texaco’s DexCool, this product does contain from 252 to 308 PPM Silicon which Valvoline believes provides a better aluminum protection.
http://www.imcool.com/articles/antifreeze-coolant/G05-Glysantin.htm
Background. Several years back, carmakers, feeling the push from new car buyers who like the words “low maintenance,” decided that 3-years and/or 30,000 miles was not a sufficient service life for coolant. The search began for a longer life product. In 1995, GM converted its new cars over to Dex-Cool®. That product, manufactured by Texaco, is a non-silicated organic acid technology (OAT) coolant designed to provide 5-year, 100,000-mile service (since upgraded to 5-year, 150K miles—but not for Saturn). Industry watchers expected that DC and Ford would soon jump on the OAT bandwagon. That didn’t happen. Instead, after running tests of their own, they decided to stay with what they had and research the options a little longer. To learn more of DC’s and Ford’s concerns about OAT, read “Coolant Controversy” and Technical Correspondent Paul Weissler’s “OE Makers Put Brakes On ‘Orange’ Coolants” as it appeared in the May 1999 issue of Automotive Cooling Journal.
What’s a HOAT? Hybrid OAT in this case means it has a traditional Ethylene Glycol-base, with a single OAT inhibitor and is moderately silicated. The version now being installed by DC, and tested by Ford, is based on the German BASF product, Glysantin G 05. It has been used in extensively in European Mercedes Benz and other manufacturer’s vehicles since the late 1980’s. New users expect that it will provide the 5-year, 100K miles coverage they desire. G 05 proponents believe that its moderate dose of silicates provide greater aluminum protection than a straight OAT while still being water pump friendly.
Glysantin has been used in European cars and truck for several years
Where to get it. Manufactured by Valvoline® (Zerex®), for now the product will be available only as DC’s MOPAR®. If Ford adopts it, expect it to be sold under the Motorcraft® brand. However, you may want to also try your local Mercedes Benz dealership. None of the current Zerex, Igloo® or Pyroil® products are G 05, but it will be available as a Zerex product in the near future. The MOPAR long life product is orange in color; Ford’s, if adopted, will most likely be gold. Initial laboratory results indicate G 05 is compatible with traditional green product, but mixing with too much green may lower the coolant life. Mixing G 05 with Dex-Cool is probably not wise. Ford is said to be running extensive fleet tests to better answer the compatibility question. (Hopefully, the Snoopster can share a copy of technical paper with you in the future.)
Why the secrecy? Why do I, an industry snoop and tradeshow gadfly, have to be the one to bring you this news? Why is it that the only printed material I could find about this “new” product (Glysantin at that)—written in English—was on a Latvian web site? (Latvia??) Could it be that none of the OEs really want to shine a light on their coolant products right now? Could there be a little consumer-based testing going on? Maybe.
Look at the variables!!! But can you blame them? In their effort to meet higher emission and fuel mileage requirements, look at the variables auto makers have to contend with: both gas and diesel engines functioning at higher than ever operating temperatures, coolant flow rates and pressures; aluminum radiators made out of a slew of different aluminum alloys and by several different manufacturing/brazing processes; copper-brass radiators constructed with everything from high-lead through lead-free solders; umpteen different hose materials; numerous metal components and all types of exotic seals and gaskets. Plus, they always have to be prepared for unknowing consumers and technicians subjecting a system to highly corrosive top off water. Automotive antifreeze does not seem to be an easy business to be right now. In any case, it’s good news for service businesses that know their stuff. Car owners, especially those owning more valuable vehicles, need you! They may not know it nor be willing to admit it, but they really need you! $$$
Editor’s Update: Valvoline has added a G 05 Technical Bulletin to their website. Starting at www.valvoline.com, select “Products” from the left-hand navigation bar; from the drop down options labeled “Choose Product Category,” select “Cooling System Products” at the bottom of the list; push the button labeled “Technical Bulletin.” Notice that different from Texaco’s DexCool, this product does contain from 252 to 308 PPM Silicon which Valvoline believes provides a better aluminum protection.
http://www.imcool.com/articles/antifreeze-coolant/G05-Glysantin.htm
- Location
- NC Sandhills
But will it still kill stray critters?
OT
NAXJA Forum User
- Location
- Jensen, UT
No, but it'll scald 'em real good.woody said:
- Location
- NC Sandhills
Outstanding!
