Forum Discussion
myredracer
Nov 15, 2014Explorer II
There's two type of the pink RV anti-freeze, one with ethanol (the "cheap stuff") and the other with propylene glycol (the "good stuff").
I would assume that the one with ethanol (alcohol) would evaporate over time whereas, from what I was able to just find, propylene glycol has a low evaporation rate. I could not find any comparative info on evaporation rates between the two RV types.
The cheap stuff can leave a bad taste and odor, damage some HWH anodes (if you happened to get some in the tank) and can sometimes damage seals.
The good stuff is used in a lot of consumer products that are consumed on a regular basis by humans and you don't even notice it.
When you go to buy RV antifreeze, you may have to look all over the container's labeling as often the contents are in very small print. The good stuff can be harder to find and I ended up paying $8 a jug. I just checked all over the place here and only found one place that had the good stuff which was an independent RV repair/parts shop. I even had one RV dealer say that antifreeze with glycol is only for engines and they don't make it for RV use! Idiots... Camco makes the glycol based stuff and it's not a rare and obscure product. I have a feeling that the cheaper stuff is higher profit for vendors which may be why it's so widely available.
When I just did a bit of googling, I found that one manufacturer has a blend including not only propylene glycol and ethanol, but also some methanol and ethylene glycol both of which are toxic. Supertech RV antifreeze. Not good! I've also read that sometimes RV antifreeze contains recycled material. If you are going to run the stuff through your water lines, maybe reading the manufacturer's MSDS info. first would be a good idea.
If you already have the ethanol version put in, maybe you could put a few drops of mineral oil in the toilet bowl and traps? DW refuses to allow anything besides plain water in our plumbing lines so I always blow out the lines with air. It's so easy (and cheaper) too.
I would assume that the one with ethanol (alcohol) would evaporate over time whereas, from what I was able to just find, propylene glycol has a low evaporation rate. I could not find any comparative info on evaporation rates between the two RV types.
The cheap stuff can leave a bad taste and odor, damage some HWH anodes (if you happened to get some in the tank) and can sometimes damage seals.
The good stuff is used in a lot of consumer products that are consumed on a regular basis by humans and you don't even notice it.
When you go to buy RV antifreeze, you may have to look all over the container's labeling as often the contents are in very small print. The good stuff can be harder to find and I ended up paying $8 a jug. I just checked all over the place here and only found one place that had the good stuff which was an independent RV repair/parts shop. I even had one RV dealer say that antifreeze with glycol is only for engines and they don't make it for RV use! Idiots... Camco makes the glycol based stuff and it's not a rare and obscure product. I have a feeling that the cheaper stuff is higher profit for vendors which may be why it's so widely available.
When I just did a bit of googling, I found that one manufacturer has a blend including not only propylene glycol and ethanol, but also some methanol and ethylene glycol both of which are toxic. Supertech RV antifreeze. Not good! I've also read that sometimes RV antifreeze contains recycled material. If you are going to run the stuff through your water lines, maybe reading the manufacturer's MSDS info. first would be a good idea.
If you already have the ethanol version put in, maybe you could put a few drops of mineral oil in the toilet bowl and traps? DW refuses to allow anything besides plain water in our plumbing lines so I always blow out the lines with air. It's so easy (and cheaper) too.
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