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Old Oct 8, 2004 | 10:25 PM
  #1  
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Question Quick coolant question!!

My girlfriends family just got a 96 f-250 psd for hauling their horse trailer, No need to say how jelious I am but that is an other story.
her dad wanted to know what coolant to use. so what name brands should one use on a psd. and are there any that should be avioded?? dose the cummins and durasmack use one not compatable w/ the psd?? Thanks for any help J
 
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Old Oct 9, 2004 | 10:21 AM
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Domino'sDiesel
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On a 96 it's just the plain ole green with SCA added to it to prevent from cavitation. Just use a good 50/50 mix and check the sca's with test strips. Should be in the 2-3 range. Get the test strips and sca from ford.
 
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Old Oct 9, 2004 | 10:45 AM
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Just plane green?? you dont mean prsstone do ya? it would have to be the heavy duty stuff right? doose any one have any brands that work better and dose the SCA come in the heavy duty coolant or is ir seperate? thanks J
 
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Old Oct 9, 2004 | 10:49 AM
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if your like me and dont want the hassle of checking sca level and woorring about cavation flush system out and use zerex gold G-o5 good for 70,000 + whatever you do dont use dex-cool
 
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Old Oct 9, 2004 | 11:22 AM
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My radiator shop here calls dexacool dexa-mud because that is what it looks like after alittle while and it wil plug up the system. I switched my system over to the zerex 05 or motorcraft gold and have no problems at all with it. Some will say that you shouldn't use it in anything older than a 01 but I see some that say you are fine, it is just a matter of opinion.

refuse2
 
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Old Oct 9, 2004 | 11:36 AM
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dose zerex g-o5 have the sca in it already?? or dose my friend need to pick up some SCA from ford?? dose any one any one know any thing about the Shell Rotella ELC ?? it says it's diesel ready "CAT-EC-1 " and "DO not add SCA" ? will it work in ford. and should one avoid mixing brands?
 
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Old Oct 9, 2004 | 11:50 AM
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the zerex 05 already and the motorcraft gold has the sca's and it is recommended not to put anything like that in it, as for the old green stuff you would need to add the additive and check it periodically which is a pain in rump.

refuse2
 
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Old Oct 9, 2004 | 12:14 PM
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sory i missread what year your truck was
 
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Old Oct 9, 2004 | 03:11 PM
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See the article in the Tech articles section entitled "hot summer cool diesel". Tech articles is at the upper right of your screen. This subject has been one of the most controversial ones I have seen since I have found this site. Once you understand propylene glycol, ethylene glycol, SCA, DCA, extended life coolants, zero-pressure coolants, and a few more things you can make the right choice. Some combinations of coolant can cause the coolant to gel, some will keep you cool but will not protect you from cavitation. Also you should know that most of the quick oil change places are not very aware of diesel coolant requirements. Ask questions before you let them open your coolant system. If you can comprehend those things you will be much smarter than I am.
 
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Old Oct 9, 2004 | 08:44 PM
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i got a 200 psd i read the same artical and i did completly flush my system out

( 6 times ) then refilled with zerex g-o5 i also stuck a label next to fill cap say use only zerex g-o5 only now i dont have to worry about cavition or sca level
i have done a lot of seraches within this about this and it should'nt be a problemfor my year .
a 96 would be not so kind to zerex g-05 from what i read thought the post
 

Last edited by t.j.g.; Oct 9, 2004 at 08:49 PM.
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Old Oct 9, 2004 | 09:21 PM
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I appreciate that the author of that article is from International, and they would know, but can anyone say what exactly makes the new yellow coolant not OK for pre-2002 engines? I mean, what is different between a 2001 7.3 PSD and a 2002 7.3 PSD in terms of cooling system parts that would make the yellow stuff bad for the older engines?

I imagine Ford (and probably International) have *not* studied what happens when you put the new coolant in an older engine that has been running the green stuff, and they probably never will. It's simpler to just say "not recommended." But assuming you flush out the old stuff thoroughly with repeated applications of distilled water, then you're left with the question: what in an older 7.3 PSD could be harmed by the yellow coolant?

Duncan
 
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Old Oct 9, 2004 | 09:36 PM
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If you want an extended life heavy duty, diesel rated, ethylene glycol coolant with SCA's look at Fleetguard ES Compleat. Extended drain, but still uses SCA's, Navistar approved. Ford has done a study, and concluded that 99.5 and up could use GO-5 but killed the TSB because it got to complicated. You can use ES Compleat in any green coolant machine.
 
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Old Oct 9, 2004 | 09:47 PM
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Originally Posted by DALPILOT
Ford has done a study, and concluded that 99.5 and up could use GO-5 but killed the TSB because it got to complicated.
I've got the time - explain the complexities to me (if you know them)! Is it just a matter of flusing the old stuff out so you don't mix them *AT ALL*, or are we talking new hoses or water pump seals or something too? (My interest is for a '97, just to raise even more complexities - I would prefer to "stock" just one coolant for both the trucks.)

Duncan
 
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Old Oct 10, 2004 | 09:54 AM
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I've heard of some people switching there '96 '97s over to the newer anti-freeze and no problems that I've heard of but then again it is all up the end user whether or not they are will to take the chance in it or not.

refuse2
 
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Old Oct 10, 2004 | 11:26 AM
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To my knowledge, Ford did not test on earlier than 99.5. That is all I know on the subject. When they went to write the TSB, they felt it would be too difficult to identify which vehicles would be eligible, how much flushing would be required etc, so they just dumped the whole thing in the trash. This info comes from another web site which out of good manners I won't name here. The author is allegedly close to the engineers involved.

I have one of the last 2002's to come with the green stuff. I thought about it long and hard. We have almost 50 years of successful diesel cooling with ethylene glycol and SCA's versus 2 years with the new stuff. I'm sure there has been a lot of testing, but relative (in comparison to the green stuff) little real world experience with G-05 in diesels. I decided to go conservative and use the best EG coolant with SCA's added, which appears to be Fleetguard ES Compleat. I'll drop it out 3 years from now, if I have more confidence in G-05 I may go that way at that time. My veiwpoint on coolants is because of the extreme damage cavitation does, "failure is not an option".
 
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