[AT] antifreeze toxicity was OT - oil stop leak

[Phil Auten]

Does anyone have any experience with Evans Waterless Coolant? I have 
seen it advertised starting within the last year and did some checking 
price wise, but I haven't bought any and have no experience.

Thanks in advance,

Phil in TX


On 2/18/2019 7:02 AM, Mark Johnson wrote:
>
> My brother in law is a chemist - in his experience in industrial 
> chemistry, they used ethylene glycol and propylene glycol 
> interchangeably as solvents, based on what was available and cheap.
>
> [Note: He was NOT involved in food-grade chemicals, he works with fire 
> retardants!]
>
> Propylene glycol is roughly 1/3 as toxic (as measured by LD50 with 
> rats) as ethylene glycol. By most standards, even ethylene glycol is 
> not very toxic, but it's a hazard because the sweet taste can lead 
> animals (and humans, in my personal experience) to consume the stuff. 
> Given that they are both used as specialized industrial solvents, it's 
> not surprising that these compounds can do funny things to rubber 
> radiator hoses. I don't doubt that part of the testing of materials 
> for radiator hoses includes resistance to all commonly used antifreeze 
> compounds.
>
> A bit of agriculture: Back in the day before it was banned, we 
> discovered the hard way that the herbicide Lasso (common name 
> alachlor) did nasty things to some types of hoses. We had to change 
> out all the hoses on a spray rig at least once before we figured it out.
>
> Mark J
>
> On 2/17/2019 6:53 PM, David Myers wrote:
>> In my experience both types are good coolants.  My only caution is do 
>> not mix the two!  They are not compatible.
>> You do not have to do anything special to change types other than 
>> drain and refill although flushing with plain water sure won't hurt 
>> and isn't a bad idea.  I wasn't aware that propylene glycol is less 
>> toxic, that is a definite plus.
>> David
>> On ‎Sunday‎, ‎February‎ ‎17‎, ‎2019‎ ‎05‎:‎45‎:‎34‎ ‎PM‎ ‎EST, Jason 
>> <dejoodster at gmail.com> wrote:
>>
>>
>>
>>
>> Amsoil also makes a propylene glycol antifreeze. Its heat transfer 
>> abilities are better than ethylene.
>>
>> Good in high temps but not so great in the winter because at idle the 
>> heater output at idle was nearly non existent.
>>
>> Jason
>> _______________________________________________
>> AT mailing list
>> AT at lists.antique-tractor.com <mailto:AT at lists.antique-tractor.com>
>> http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com
>>
>> _______________________________________________
>> AT mailing list
>> AT at lists.antique-tractor.com
>> http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com
>
>
> _______________________________________________
> AT mailing list
> AT at lists.antique-tractor.com
> http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.antique-tractor.com/pipermail/at-antique-tractor.com/attachments/20190218/a862a725/attachment.htm>