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midgetracer · 10-04-2022, 10:22 AM

The OReilly universal antifreeze is definitely Ethylene Glycol based. Ethylene Glycol is clear, but the dye additives give it whatever color the mfg wants it to be. The OReilly stuff is a light yellow color. I have a gallon here and checked the label.

10-04-2022, 10:22 AM	#15
midgetracer Senior Member Join Date: May 2010 Location: Bismarck ND Posts: 1,189	Re: Yellow antifreeze The OReilly universal antifreeze is definitely Ethylene Glycol based. Ethylene Glycol is clear, but the dye additives give it whatever color the mfg wants it to be. The OReilly stuff is a light yellow color. I have a gallon here and checked the label.