I use the BMW blue stuff. I have bought it at the BMW auto shop, but it's actually a few dollars cheaper at the motorcycle shop.
I've read that any silicate-free anti-freeze will work fine. Prestone used to say they had a silicone/silicate fomula in their old commercials. Silicate is what we want to avoid. I don't know if silicate is still in the Prestone, but it's worth my peace of mind to use what came in the bike.
Thanks guys. I read in the Clymer anything nitrate free and I read on the Prestone that it is nitrate free. So I used that....bout three ounces just to top it off. But I will remember to use the Blue goo when I change out the coolant totally. Thanks again !!
If you want the BMW blue made by Pentafrost, You can get it at NAPA. The part number is G001100. The red is part number is G001200. Full disclosure. Yes I do sales for some Napa stores and have several dealers who keep this on hand because it is less than buying from the mothership. This is not a sales pitch. It just happens to be what I have knowledge of.
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