GL1800Riders - View Single Post - Silicate free anti-freeze
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post #9 of (permalink) Old 02-13-2017, 07:13 AM
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Justa_Poser's Avatar
Join Date: May 2007
Location: Missouri
Posts: 3,548
The Prestone EXTENDED LIFE is what ya want. I haven't bought any in a while, but the last time..... it said silicate, phosphate and borate free - in the fine print on the back of the gallon jug.
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