Glysantin® Invades North America!
by Mole Snoopster™
Appeared July/August 2000
© 2000 All Rights Reserved
Actually, the headline above
could just as well be “DaimlerChrysler Introduces Same Coolant Now
Used By US-Built Mercedes, Ford Is Looking—None Follow GM.”
Or, it could read “DaimlerChrysler Brings On Mercedes Benz Coolant
As A Long Life Coolant, Ford May Too.”
To give it to you straight, DaimlerChrysler (DC) has two production
vehicles now using a hybrid organic acid technology coolant (HOAT). This
coolant’s inhibitor package is slightly different from traditional
high-silicated green coolant, enough that it’s expected to provide
double the service life, but is still compatible with traditional.
Above: The engine cooling system
of DaimlerChrysler's innovative and successful PT Cruiser comes charged
with the Zerex product, Glysantin G 05. In Europe, BASF has marketed
coolants under the brand name Glysantin for several years. It has become
synonymous with coolant.
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.
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
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
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! $$$
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.
Mole Snoopster™ is a freelance journalist
specializing in breaking automotive industry stories that some may want,
or not want, broken. If you have “news” and want it announced
discretely, contact the editor. He just may put “the Mole” to work!
(At his discretion, of course.)
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