On 22/12/2017 13:17, ARW wrote:
On 22/12/2017 12:17, Vortex13 wrote:


Used undiluted it claims protectionÂ* to -20C

50% dilution claims protection to -7.5C

How does that work then?

The thing is it does not work!. Get a minus 4 night and at 50% dilution
it will have frozen.

So true. That's why I add meth to mine.

Mike