HiOriginally Posted by matt5112
Not necessarily.
These "Long Life Coolants" can easily be a Hybrid OAT (HOAT) such as G-05 and the others listed in my previous post that contain reduced amounts of silicates. These coolants are not sensitive to air in the system like a OAT coolant is which not only offers significant improvements in protection to the water pump impeller but helps eliminate the "mud" dex systems often have..
Also, none of these contain the known plasticizer, 2-eha as an additive.
