Long Life Anti Freeze for Model A's ?

[pomadum]

Many Newer long life anti freezes contain Organic Acid Inhibitors. I have read two published articles on them:
One says they provide good protection to lead/solder used in radiator construction.
The other article says they should be avoided as the Organic Acid base will weaken soldered joints in radiators.

Does anyone know what the real facts are?

 

[msmaron]

Many Newer long life anti freezes contain Organic Acid Inhibitors. I have read two published articles on them:
One says they provide good protection to lead/solder used in radiator construction.
The other article says they should be avoided as the Organic Acid base will weaken soldered joints in radiators.

Does anyone know what the real facts are?

Clean Clear water and about 20oz of Anti Freeze is all you ever need to put in that radiator... Anti Freeze as a rust inhibitor..

 

[Purdy Swoft]

Many Newer long life anti freezes contain Organic Acid Inhibitors. I have read two published articles on them:
One says they provide good protection to lead/solder used in radiator construction.
The other article says they should be avoided as the Organic Acid base will weaken soldered joints in radiators.

Does anyone know what the real facts are?

Where I live it seldom gets cold enough to be a problem and we keep the model a's inside. The three main reasons that I don't use antifreeze are. Heat expands and it is not unusual for some licquid to exit the overflow after a long ride in hot weather. if the pets (dogs & cats) drink antifreeze it kills them. If you have a head gasket problem and antifreeze leaks into the oil pan it destroys the babbit in fairly short order. The model A runs cooler with plain water.

I ad water pump lubricant to the water to control rust, this may slightly hinder cooling but not enough to be a concern.

I drain the model a's in the winter just for good measure. It is a pain draining and refilling each time that we drive them in the winter but I figure it is worth it. The only time that it was a real problem was when I forgot that the coupe had been drained. I cranked it up and left it running to warm up for 15 or 20 min. When I came back out to go for a ride it didn't sound good and I remembered it had been drained. after it cooled I added water and checked the oil and it had about a gallon of water in the oil pan. I now tape a note to the steering wheel as a reminder.

 

[Tom Wesenberg]

I run 50 to 65% antifreeze and the rest plain tap water. I leave it in year round for 4 years now and no problems, and no coolant loss since I installed a thermostat.

That interesting about the 2 conflicting statements, and I don't have an answer on the longlife antifreeze. I would check with some local new car dealers and radiator shops to see if they have any insite on the longlife antifreeze.

 

[Old182]

I'm with Tom. I run 50/50 and have had no problems with the green stuff. The new coolants, I'm told, will find the smallest of holes in your system and will leak (it happened to my former boss' restored Jensen Healy). The coolant guys I worked with recommended that if your car came with green coolant, stick with it. $0.02.