Prestone rv pink antifreeze

suprz wrote:
I buy prestone because of preference, and also because it does not contain alcohol. Alcohol is not good for seals or rubber. Walmart brand, and other cheap brands contain alcohol. I prefer Propylene Glycol antifreeze

It's just a matter of reading the label, which will show the contents. The other thing to watch for is what they claim for freeze point - none are pure PG, they have added water. How much depends on the area of the country and price.