Nissan Altima (L33) 2013-2018 Owners Manual ≻ Starting and driving ≻ Cold weather driving ≻ Anti-freeze
Nissan Altima (L33) 2013-2018 Owners Manual: Anti-freeze
In the winter when it is anticipated that the temperature will drop below 32°F (0°C), check the anti-freeze to assure proper winter protection.
For details, see “Engine cooling system” in the “Maintenance and do-it-yourself” section of this manual.