The only downside is, it too is corrosive. It will eat paint.
The new formulas are greatly reduced methanol and use higher concentrations of ethanol.
Sadly, this new ethanol formula over time will dissolve natural rubber (aka tires) and take the paint off the inside of the rims. Nitrile rubber is compatible to those types of alcohols and fuels. With that said, all the washer fluid systems in vehicles are plastic tubing and nitrile o-rings and gaskets. Tires are not nitrile based.
This all took effect back in 2014 when the UN declared methanol as a harmful chemical. Many companies had to change their formulas, even Rain-X. And that is why Rain-X is a bit weaker to apply vs. prior to the reg. changes.
Window Washer Fluid is listed as an RCRA hazardous waste (U154).
Adding liquid
ballast to your tractor tires can significantly improve performance, but it's hard to know which ballast offers the best overall solution.
www.hobbyfarms.com