NOT SURE WHAT COOLANT TO USE?
If In Doubt Flush It Out!
Identifying between NITRITE FREE (NF) and NITIRITED (NOAT) can be a little difficult and confusing
At Prestone we have identified the simplest method to establishing coolant type is the identification of the cooling system materials
Engines with Aluminium Cooling System
Use Nitrite Free (NF)
Cast Iron Engine Block with Brass and Copper Cooling System.
Use Nitrited (NOAT)
Other factors that identify Nitrite Free coolants can include
Engines that require Non 2-EH ( 2-Ethylhexanoic ) formulation
Cooling systems that were fabricated using CAB (Controlled Atmosphere Brazing) process for the soldering / brazing of aluminium radiator core and tubes
Most Volvo Off Road / Construction Equipment produced after 2006
Most engines produced after 2014
All Cummins 2014 on : All Detroit 2015 on : All Volvo & Mack 2017 on
Other factors that identify Nitrited (NOAT) coolants can include
Engines that have wet sleeve liners that require corrosion protection
All Caterpillar Off Road Engines
Engines that require Cummins Approval CES14439
Navistar, International, Cummins Engines pre 2014
Mixed Fleets
Prestone Nitrite Free with Cor-Guard is recommended for Mixed Fleets
Cor-Guard is backwards compatible and can be used to top of all other NF and NOAT coolant brands
Cor-Guard patented technology ensures Nitrite Free is suitable for all engines when flushed and filled
