Propylene glycol as antifreeze 3

[Slim3]

Has any one run tests on head temperature vs coolant temp on plain water vs straight Propylene Glycol coolant?

Someone said they noted higher coolant temp when using PG vs water.

Due to the steam pockets that form in areas of the combustion chamber cooling system using water and PG will continuously wet the metal and not cause these pockets.

If a coolant were receiving more of the combustion chamber heat, would it not show higher temp at the coolant temp sensor?

I would think that it would be necessary to test head temp vs coolant temp using both water and PG to know what was happening.

 

[IRstuff]

So, here's the health effects section of PG MSDS:
Potential Health Effects
----------------------------------
Inhalation:
No adverse health effects via inhalation.
Ingestion:
Relatively non-toxic. Ingestion of sizable amount (over 100ml) may cause some gastrointestinal upset and temporary central nervous system depression. Effects appear more severe in individuals with kidney problems.
Skin Contact:
Mild irritant and defatting agent, especially on prolonged contact.
Eye Contact:
May cause transitory stinging and tearing.
Chronic Exposure:
Lactic acidosis, stupor and seizures have been reported following chronic ingestion.
Aggravation of Pre-existing Conditions:
Kidney disorders.

TTFN
faq731-376

 

[Slim3]

Great info from all of you. Evelrod, is "Red Line" water wetter the same "Red Line" in CA that handles all the Weber carb parts?

I use to follow all the tech articles Smokey Yunick wrote in Circle Track mag. He was ahead of most everyone in many areas.

I will post the results of the tests I run on my cooling system later in the year.

Thanks again everyone. This is a great site.

 

[evelrod]

No, Slim3, they are not.

http://www.carbsonly.com/weber/therealdealweber.htm

http://www.redlineoil.com/Products.aspx?pcid=10

Rod