Quote:
Originally Posted by jsceash
MSDS sheet comparison. The numbers that are listed are the chemical codes from an international database I believe they are identical. Could they be in differing concentration I guess. Would that make them curdle Emphatically NO.
Pentosin Pentafrost SF
Active ingredients
Ethylene Glycol (107-21-1)
Diethylene Glycol (111-46-6)
Sebacic Acid (111-20-6)
Sodium Hydroxide (1310-73-2)
Water (7732-18-5)
Denatonium Benzonate (3734-33-6)
Die and Defoamer
Porsche 000 043 301 05
Active ingredients
Ethylene Glycol (107-21-1)
Diethylene Glycol (111-46-6)
Sebacic Acid (111-20-6)
Sodium Hydroxide (1310-73-2)
Water (7732-18-5)
Denatonium Benzonate (3734-33-6)
Die and Defoamer
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Notice that the MSD is only required to list what the international treaty identifies as potentially toxic, mutagenic, carcinogenic, or environmentally hazardous ingredient's, and then only if they are above certain concentration levels, but not anything else, like the dye ,defoamers, surfactants, stabilizers, etc. which can be at levels below that required for reporting. The same treaty allows the compounder to withhold the formulation concentrations levels which are considered "proprietary" information. And could the non listed ingredients cause gelation, sure, you have no idea what they are. So the MSD only gives you certain information, but not everything.
Now if you totally drained the system and flushed it with water to remove the OEM coolant, you could use just about any brand compatible with alloy engine's with no problems.
But if you are going to start mixing brands, well, it's your car and your money, proceed however you are so inclined, shops are only too happy to charge people to clean out the gel when it forms.................the last Porsche we did took over four hours of shop time, plus materials.