G48 or G05
- Thread starter Tikka
- Start date
Answer: G48 has a longer interval but both are approved.
g05 has been off the list for almost two decades.
Mercedes issued a bulletin back in 6/2012 replacing G05 with G48 so ya at least a decade. OP has a 2008. *Shrug*
You may find this helpful;
www.glysantin.de
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www.glysantin.de
JHZR2
Staff member
Personally for older vehicles from before the release of the G-48 as factory fill… G-05 would be my choice.
Hi.You may find this helpful;
Startseite
That is a great list.
So for Jeep vehicles pre 2010 it states G05. MS9769
For Mercedes - the engine manufacturer - pre 2014 it states G48. MB325.0
One UK manufacturer of G48 lists it as up to 3 year service life. https://www.commaoil.com/passenger-vehicles/products/view/563. That does not seem long for a coolant. The original MS9769 as filled by Jeep - the orange stuff - was 5 years.
I am leaning toward G48 as that is what seems to be in it now. Blue coolant. I just wondered if there was any advantage to G05.
Thanks.
One thing I have noticed is the orange Chrysler brand 5 year MS-9769 antifreeze, which is usually considered to be a G-05 clone, doesn't list nitrates on the MSDS. Actual G-05 MS-9769 does list nitrites. The purpose of nitrites in antifreeze was to provide cavitation protection to diesel engine cylinder liners, which have unique stresses caused by the strong firing impulse that gasoline engines don't experience. I'm not aware of any benefit to nitrites in a gasoline engine. Newer formulations have gone away from nitrites, what newer additive is used for that cavitation protection, I don't know.
Mopar 5 year antifreeze;
Zerex G-05;
Hi.
Fwiw.
I contacted BASF in Germany, they make Glysantine that is in the G series coolants.
I asked the difference between G05 and G48 being as they are both HOAT.
They replied.
'The main difference is that G48 is made for engines with a higher share of aluminum and G05 is made for engines with a higher share of cast iron'.
Maybe why Jeep suggests G05. One coolant for all engines including the old V8.
Fwiw.
I contacted BASF in Germany, they make Glysantine that is in the G series coolants.
I asked the difference between G05 and G48 being as they are both HOAT.
They replied.
'The main difference is that G48 is made for engines with a higher share of aluminum and G05 is made for engines with a higher share of cast iron'.
Maybe why Jeep suggests G05. One coolant for all engines including the old V8.
G-05 uses sodium benzoate as the OAT component, and borate for pitting protection of wet liners alongside the silicate part. G-48 uses 2-EHA and silicate with no borate. The Japanese frown upon borate due to effects on aluminum.
There’s a trend to drop nitrite in heavy-duty coolants since they turn into amines but also the increase in use of aluminum - including controlled-atmosphere brazed heat exchangers. Rotella ELC NF, Final Charge, Prestone Cor-Guard(both the 2-EHA/sebacate automotive and non 2-EHA “heavy-duty” Command version) and Japanese coolants are all nitrite-free.
There’s a trend to drop nitrite in heavy-duty coolants since they turn into amines but also the increase in use of aluminum - including controlled-atmosphere brazed heat exchangers. Rotella ELC NF, Final Charge, Prestone Cor-Guard(both the 2-EHA/sebacate automotive and non 2-EHA “heavy-duty” Command version) and Japanese coolants are all nitrite-free.
G48 is borated
CleanSump
Site Donor 2022
According to MB you can mix them, though G48 is supposedly better for aluminum.
MB was discontinuing the G05 under their OE label.
TSB 2012 G-48 from the maker of the OM642 found in Jeeps and my E320.
https://w124performance.com/docs/mb/other/antifreeze_TSB_2012_G-48.pdf
I'm sticking to Blue, but not Ford.
MB was discontinuing the G05 under their OE label.
TSB 2012 G-48 from the maker of the OM642 found in Jeeps and my E320.
https://w124performance.com/docs/mb/other/antifreeze_TSB_2012_G-48.pdf
I'm sticking to Blue, but not Ford.
G48 does have Borate, and not all of them use 2-Eha, some use Benzoate instead too.
I use a G48 in both my cars ( G11 actually but it's the same as G48 ) and it does not have 2-Eha.
I guess the Silicate content is high enough to counteract the potential corrosive effect of Borate on Aluminium, G48 has a realtively high Silicate content of 600-700ppm, G40 for example has 500 and G05 about 250.
JHZR2
Staff member
Do we know which G-48 use 2-EHA?
If you download the safety data sheet of any coolant if it has 2-Eha, it will appear.
JHZR2
Staff member
