Coolant System Green Goo

[davidbrady]

From the attached DD document: "Cooling Requirements for Engine Cooling Systems":

"These types of coolants (OATs) should not be mixed with Standard Life Coolants. If an ELC antifreeze coolant and SLC antifreeze coolants are mixed, damage may not result, but the long-life advantages of the ELC antifreeze coolant will be lost. In this event, the coolant should be re-inhibited with OAT inhibitors and confirmed by analysis or else it must be maintained as an SLC antifreeze coolant."

So Prevost did the right thing by screwing on a NalCool 3000 needs release filter after partially filling my system with ELC (OAT). If you have a mixture then one option, as the above spells out, is to treat and maintain the fluid as a standard non-organic ethylene glycol fluid. The other is to retreat with new OAT inhibitors but who can do that and how is it done?