Remember: When it leaks, the MB stuff (and other German stuff, like VW Autobahn) smells like crayons, not maple syrup/pancakes as US stuff smells. I once heard the Car Talk guys get stumped by this scent -- car was a VW that smelled like crayons when the heat was on. They suggested looking for crayons down in the defrost vents -- not a leaking heater core which was probably the problem.

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David
1986 300E Anthracite + ECodes + MB Mileage Award

MB coolent is very clear, with a slight tan color to it.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

It is o.k. to mix Zerex G-05 with MB coolant? I just realize the PO used the "green stuff" and I only have one jar of MB stuff.

Yes. They are the same thing in different packages.

Yes, I looked at the MSDS of each formulation. Though I'm not an expert on antifreeze formulation, I'm not completely ignorant of chemistry. The additives of each (MB and G 05) appeared very similar, though perhaps at slightly different concentrations. I feel comfortable mixing the two.

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95 E320 Cabriolet, 169K

Prestone just came out with a new coolent I believe its called "Big Yellow" that claims to be approved for any car and will mix with any coolent.For my money I use MB coolent.

Just replaced my 5 year old Prestone green with same. Never any problems and green was clean as day put in. I think that if you have a good sealed cooling system and replace antirust chemical once in a whle, you wont have any problems with Prestone. Possible newer cars have more non-compatible metals but for me never any problems. No leaks, no discoloration, just fine. Abe G

I just put a jug of that in my daughter's Taurus. It seems to be working just fine so far, whatever that's worth. They call it "all color compatible" We'll see, I suppose.

Isn't it amazing, how plain old ethelyne glycol worked so well for so many, many years? Now every other manufacturer insists that theirs is the only possible coolant that will work in their cars. Toyato has their own, Honda, Ford, GM.

sheesh,

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Norm in NJ
Next oil change at 230,000miles