Two steps forward and a giant leap backwards.

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Pretty sure standard antifreeze should be changed every other year or 20 K miles . If that schedule is maintained does it mater if you use tap water for premix? ( I say no) :) I mean we aren't talking about cheap beer vs craft brew here...
 
Depends on your source of water.
Heavy,. Mineral rich well water. ,- not so much.
City water, - maybe .
Distilled water .
Pre-mix .

neutral P/H, - clean and green antifreeze lasts for years .
 
yeah but talking about "deposits" over long periods of time...in a current street car they are throiwaways these old cars? maybe depends on how much you drive them.

The poster said he uses premix while telling the other side who may mix it themselves that they should r=un out and get distilled water in an attempt to steer them to premix. he also said to "do homework" this isnt rocket science or chemistry class these are old cars, do what you want but ill buy concentrate and use tap water dont care about "deposits" I never had an issue in 35 years. You think ewwhn I die some guy whos young now is going to give a rats *** about my well maintained 340 dart? without "cooling system deposits from tap water?

some people make this into too much work LOL!
 
Deposits are less a problem than electrolysis, - that eats out the timing covers, and other "sacrificial" anodes like copper, brass, solder, lead, steel, tin, potmetal, aluminum .
 
Well, I come from the airplane community.
I would like you to go out and buy one of the popular light sport aircraft that has the Bombardier Rotax water cooled engine. Go ahead and mix tap water with the antifreeze of your choice and fly it for 2 yrs.
See what happens to your $20,000 engine.
When I made the statement about water and antifreeze, I said to check it out, do your homework, you don't have to believe what I say. You don't have to believe them either, do what you want, you are the one that will be paying for it.
 
you fellas dont thing that every auto shop and every mechanic runs out for distilled water do ya? Oh My God it musta been the death of many a innocent cooling systems :)
 
If I remember from researching over a year ago, it was + and- charge in water. If it's off, it will take it from the engine.
#1 was Reverse osmosis
#2 was distilled
There was also filtered water, don't remember the 4th choice. Tap water wasn't in there.
 
I worked at 4 different shops when I was a younger man, and yes, water did kill a lot of cooling systems. You are finally correct about something.
I'm out.
 
doogievlg said:
There is barely any antifreeze in the system. Most of it is what which is odd. I did notice the Penn oil had a strange color when it was going it but it didn’t look like that.
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If you are using Brad Penn oil then the oil itself is green hence why they call it the "green snot" so it might not be antifreeze in the oil
 
dartindanno said:
If you are using Brad Penn oil then the oil itself is green hence why they call it the "green snot" so it might not be antifreeze in the oil
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Never heard of Brad Penn oil. however he needs to do a pressure test of the cooling system to be sure. If that test comes up good change oil and run it.
 
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Dartswinger70 said:
I am taking this to mean barely any anti freeze in the cooling system? If so its going somewhere it doesn't evaporate like water or whiskey :) get some at wal mart or something, if you want the best deal get the 100% concentrate and mix it 50/50 gets you 2 gallons that way. Premix is a rip off IMO. top off the cooling system, get a pressure tester, you can rent one at a chain parts store like auto zone and do the test. This will tell you if you need to tear the engine down and reseal it. running it will only wipe out bearings and lead to an overheat etc.
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I meant it as the system is mostly filled with water. The garage doesn’t get below freezing.
 
So, you did not have any anti freeze in it for a couple of years after the rebuild? Still don't? Or just drained it? If it were me, I'd replace the coolant, check some spark plugs, fire it up. If it sounds ok, run it for a few temp/fan cycles, check the oil, see what it looks like. Go from there. Is this the first oil change since the dyno?
 
hotrod swinger said:
Where’s that layered jar? We need the payoff!
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Took this about 10 seconds ago.

307D5C19-3EDC-41DA-8761-1262DA8682D3.jpeg
 
Rat Bastid said:
Someone else mentioned Brad Penn oil. If that’s what it is, there is nothing wrong with it other than fuel dilution.
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That is what was recommended by them for me to use but I wasn’t sure if they used something else on the dyno. I’ll call Monday.
 
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