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 | Scott P
Join Date: Posts: 1 
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2002-11-12 44935
I recently checked my anti-freeze protection on my TC40D and it was only protected from the factory to -10F. Here in Iowa it can get colder than that so I would like to add some more anti-freeze. Is there a cetain type of antifreeze for diesel engines or will any anti-freeze work?
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 | Art White
Join Date: Jan 2000 Posts: 6898 Waterville New York 
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2002-11-13 44946
There are two types used in todays veichles. I woould check with your dealer so not to mix them. There is the standard green as I'll call it and then the newer is red that we are getting in the new tractors. ....
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| TomG
Join Date: Feb 2002 Posts: 5406 Upper Ottawa Valley
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2002-11-13 44948
I haven't heard of an SAE spec for diesel anti-freeze but I have heard that low-silicate type should be used. I'm not sure if everything bought in a box store is low-silicate or not but think I'd want to see low-silicate on the label before using anything I didn't get from a dealer.
If the coolant hasn't been changed recently, maybe it would be good to flush the system and put new coolant in. My dealer recommends a change every two years irrespective of what the anti-freeze label says.
There's an old discussion in the archives that talks about coolant cavitation. Some diesels that are prone to cavitation may become pitted entirely through their water jackets or cylinder sleeves. Coolant additives that reduce cavitation are available. I don't think that smaller diesels used in compacts are particularly prone to cavitation but it's an interesting subject to be aware of.
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 | Billy
Join Date: Oct 1999 Posts: 975 Southeast Oklahoma 
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2002-11-13 44949
A glycol based antifreeze should be used/
Billy ....
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| Scott P
Join Date: Posts: 1
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2002-11-13 44953
Thanks guys. The tractor is only a couple months old with 25 hours now so it suprised me that it was only protected to -10. Maybe I better be safe and get the anti-freeze from the dealer until next time when I am ready to flush the entire system.
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| Billy
Join Date: Oct 1999 Posts: 975 Southeast Oklahoma
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2002-11-13 44956
Prestone makes an antifreeze called 5/150 Extended Life. They say it can be mixed with any antifreeze. It's silicate free and when mixed at 70% antifreeze, the freeze protection is good for -84F.
Billy ....
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| Walt
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2002-11-25 45373
Scott:
Low silicate glycol base coolants meeting the following specifications may be used:
ASTM D5345 (prediluted)
ASTM D4985 (coolant concentrate) in a 40-60% mixture of concentrate with water.
Use distilled, deionozed, or demineralized water for mixing with ethylene glycol base concentrate.
DO NOT use cooling system sealing additives or antifreeze that contains sealing additives. ....
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| TomG
Join Date: Feb 2002 Posts: 5406 Upper Ottawa Valley
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2002-11-26 45396
Large diesels that are subject to damage from water jacket cavitation often use an anti-cavitation additive. A common one is called DCA or something like that.
Some coolants contain the additive but it goes out of the system pretty fast. Drip systems that continuously replenish the stuff or test strips to measure that levels sometimes are used. I don't believe that cavitation damage is a huge issue for most compact tractor engines but it is an issue to keep in mind. My dealer recommends changing the coolant every two years irrespective of the life stated on the coolant label. He's had a log skidder come in for repair that had water jackets that were perforated from cavitation damage.
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