"Green stuff" is loaded with salts that precipitate out and clog up radiators and heater cores. OEs have moved completely away from it, and as a result, most manufacturers are phasing it out. All OEMs now use either a hybrid type that has mostly organic inhibitors with a small dose or silicates, or pure organic inhibitor packages that have no inorganics.

The industry consensus appears to be that hybrids should be used to replace cars that originally had green antifreeze.

Duke