Premium formula. Protects to -30 degrees F. Improves visibility for safer driving. Improves visibility for safer driving. Provides freeze protection to -30 degrees F. Outperforms ordinary blue windshield washer fluids. Removes light ice and frost. Will not re-freeze on windshield or wiper blades. Use Winter Warrior for safer driving. Winter Warrior Premium Windshield De-Icer Washer Fluid provides continuous protection against the dangers associated with windshield vision loss due to fluid re-freeze. Made in USA.