In my area, it seems to be difficult to find any rv antifreeze that does not contain alcohol. I went to 5 different stores and only one a had a few bottles left that did not contain alcohol.
Wallyworld had a few bottles left of Prestone RV antifreeze (which did not contain alcohol) and they were replacing it with Supertech which has alcohol. I went to a camper store somewhat near me and their RV antifreeze also contained alcohol. I asked the service guy why do all of these contain alcohol when it degrades seals and he looked at me like I was crazy. I found some more RV antifreeze in a few other stores and no luck...
