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Rodd,
I think all manufacturers are now recommending the extended life coolants, but then they want you to replace it every year – go figure.John
On Sat, Sep 27, 2008 at 5:25 PM, Rodd Leeds < ([email][/email])> wrote:
Time to change my antifreeze again after 3 years. Does anyone know the latest thinking if I should add the green prestone type again, or go to the extended life formulas?
Rodd Leeds
Windseeker—
Regards,
John Stevenson
http://www.svsarah.comPost generated from Pearson424 Forum using Mail2Forum
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Dropout is the sludge left behind in your blocks cooling passages. It is the failed component of AF. Either (ethylene glycol or propolene glycol) type will do it. As survival the engine is so dependant on the fluid, a quality mix of AF and distilled water is cheap insurance. 2-3 years is a good timeframe. Distilled water actually has better heat transfer ability that anti freeze, but is missing the lubricants and anti corrosion capability. That is what you are replacing, not the ability to cool.
Modern trucks have coolant filters on the system to trap the dropout and run and the newer units are running 'permenent antifreeze' . Fleet management takes the stuff out, runs it through a reclamation system, puts a base additive back in and puts it back in the truck, or just replaces it.
A discount product will do fine, replace it more often. A high end product like Prestone will last longer. Ol' red will do fine with either.
Chuck
On Sat, Sep 27, 2008 at 6:27 PM, John Stevenson < ([email][/email])> wrote:
Rodd,
I think all manufacturers are now recommending the extended life coolants, but then they want you to replace it every year – go figure.John
On Sat, Sep 27, 2008 at 5:25 PM, Rodd Leeds < ([email][/email])> wrote:
Time to change my antifreeze again after 3 years. Does anyone know the latest thinking if I should add the green prestone type again, or go to the extended life formulas?
Rodd Leeds
Windseeker—
Regards,
John Stevenson
http://www.svsarah.comPost generated from Pearson424 Forum using Mail2Forum
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Gentlemen,
I was told by a respected diesel mechanic not to use extended life antifreeze in older motors. From what he told me it will create a leaking nightmare due to lack of certain ingredients.
Adam
Fifth Child #219Date: Sat, 27 Sep 2008 18:27:09 -0400
<.. snip>Post generated from Pearson424 Forum using Mail2Forum
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My understanding is that the only difference between conventional and extended life coolants is the type of corrosion inhibitors used. I guess it is possible that the metallurgy in some older engines might not be compatible with the new product, but I doubt that it would be an across the board issue for older engines. It should be something that could be easily checked with the engine manufacturer. As I said I think the engine manufacturers are recommending the extended life product for their current engines (Yanmar does) so they should know if there are any compatibility problems.
John
On Sun, Sep 28, 2008 at 7:53 PM, Adam MacNeill < ([email][/email])> wrote:
Quote:Gentlemen,
I was told by a respected diesel mechanic not to use extended life antifreeze in older motors. From what he told me it will create a leaking nightmare due to lack of certain ingredients.
Adam
Fifth Child #219Date: Sat, 27 Sep 2008 18:27:09 -0400
<.. snip>Post generated from Pearson424 Forum using Mail2Forum
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I've heard that, too. For what it's worth, regular green ethylene glycol is perfectly fine and will last properly for up to 5 years. I'm not sure how much longer a 'long life' antifreeze could last.
I know people who have had their boats for a decade without changing antifreeze. Not that I advocate it, but if you're going to use the cheap green stuff or the expensive red stuff and change it every year or so, you might as well use the cheap green stuff that you know is compatible with your engine.
So ends my two cents.
Bob
Post generated from Pearson424 Forum using Mail2Forum
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Just add a can of “water pump lube” from the auto parts store every few
years. That replaces the lubricants, etc that “wear out” in
antifreeze. I went 20 years on the same antifreeze in a truck this
way. The anti-freeze properties of the ethylene glycol just don’t change.Pete
Robert Fine wrote:
I’ve heard that, too. For what it’s worth, regular green ethylene
glycol is perfectly fine and will last properly for up to 5 years.
I’m not sure how much longer a ‘long life’ antifreeze could last.I know people who have had their boats for a decade without changing
antifreeze. Not that I advocate it, but if you’re going to use the
cheap green stuff or the expensive red stuff and change it every year
or so, you might as well use the cheap green stuff that you know is
compatible with your engine.So ends my two cents.
Bob
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