best antifreeze for old cars
OAT's and 'Universal' with 2-EHA work best with no air in the system. Also can soften some plastics (Motor magazine Aug 2004 p. 26)
Phosphates are good to quickly recoat aluminum, esp water pumps and also helpful with protecting solder. Found in conventional (IAT) coolants.
Silicates also protect quickly.
Motor magazine Aug 2010 pp.24-5
OAT's and 'Universal' with 2-EHA work best with no air in the system. Also can soften some plastics (Motor magazine Aug 2004 p. 26)
Phosphates are good to quickly recoat aluminum, esp water pumps and also helpful with protecting solder. Found in conventional (IAT) coolants.
Silicates also protect quickly.
Motor magazine Aug 2010 pp.24-5