Best Anti-Freeze
 

What would be the best Anti-Freeze to use for protection down to Zero.
My engine is ( I think ) original with no past rebuilding, and it still runs strong.
I just seem to remember that some Anti-Freezes can get into small crevices and damage the engine.

Re: Best Anti-Freeze
 

Re: Best Anti-Freeze
 

Thanks, Mike !

Re: Best Anti-Freeze
 

If I'm not mistaken their are only two companies in the US that make Anti Freeze.

Re: Best Anti-Freeze
 

Some in my Model "A" Club have had problems with Anti-Freeze foaming. I wonder if modern (Long Life) Anti-Freeze may foam in nonpressurized cooling systems. I use O'Reilly Anti-Freeze for older cars (70's & 80's) in my Town Sedan. No problems.

Re: Best Anti-Freeze
 

Some folks use the commonly available 50-50 mix ethylene glycol based and others prefer propylene glycol for older engines. Check some blogs on the net , etc. for further discussion
as it can be somewhat technical. We use distilled water to top off as necessary.

Re: Best Anti-Freeze
 

When I used the coupe as a daily driver I used Prestone antifreeze. It almost never goes to zero here . You would need to use a tester to determine the ratio of water to antifreeze . I used one gallon of Prestone with two gallons of water. I only used antifreeze in winter .Antifreeze raises the boiling point but doesn't raise the cooling ability . Modern cars need to run at higher temps than the primitive cooling system of the model A .

Re: Best Anti-Freeze
 

Re: Best Anti-Freeze
 

If you're running plain water in the summer, you have a self-propelled rust factory!

Re: Best Anti-Freeze
 

The "green" kind. Mixed 50/50 or more. Good for beyond -30 F. We do get -40 or so sometimes so I mix it a little strong.

Re: Best Anti-Freeze
 

There are only two kinds of anti-freeze. eythelene gycol and polypropolene gycol. The poly propolene stuff is the "green" kind and tends to foam less. the percentage of water to antifreeze determines how low temp you are protected.

Actually there is a third type but I dont recommend peeing in your radiator. he-he

Re: Best Anti-Freeze
 

The best is the one that does not freeze!

Re: Best Anti-Freeze
 

Thanks for your concern about my model A's . I've owned model A's for nearly 60 years . For some reason I feel that I know what I'm doing .

Re: Best Anti-Freeze
 

Use water and you ask for rust.

Re: Best Anti-Freeze
 

I use the green stuff and add my own water. If you insist on 50/50 make your one. You just need one empty jug. :)

Re: Best Anti-Freeze
 

There was talk awhile back the long life antifreeze eats radiator solder. I don't know what to believe.

Re: Best Anti-Freeze
 

I use Prestone and have use it for years in all of my rigs including Model A's. Have served me well.

Re: Best Anti-Freeze
 

Best I can recall, there used to be some concern that one of the antifreeze types (forget which one) would eat up babbitt material, should you get a cooling leak into your crankcase. Did anyone else hear anything about that? Is it a legitimate concern?

The only reason I ask is that one of the few A guys in my area was the auto mechanics instructor at our local high school for about 35 years and one time while talking A's he mentioned this to me. I never followed up on it, but was curious if there is any basis to this.

Re: Best Anti-Freeze
 

Any kind of antifreeze in the crankcase is harmful as it will erode any type of bearing material.

For polling purposes, I like the old fashioned ethylene glycol mixed with distilled water.

Re: Best Anti-Freeze
 

I'd stay away from the orange antifreeze that GM used for some time.
It left clumps of corrosion in the system.