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Old 05-15-2013, 09:17 AM
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coolant in a OBS 7.3 PSD

I have been reading a lot about Green, Gold and ELC coolant. Does any of this apply to my 97 OBS 7.3 PSD?

I ask because i discovered i have the anti christ Green coolant. Any advise is better than what i have now.

Also, FOrd did all maintenance on this rig from PO so ford did this.
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Old 05-15-2013, 09:30 AM
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Ford is correct in my opinion. Ethyleenglycol (low silicate/Green) with the diesel additive is what is used in our older Engines. Gold and Orange Rad Fluids are for '02 DuraMaxes / Cummins and '03 6.0 PSDs and new engines (as according to my books at the shop). Something to do with mixed metal blocks and heads. Our all Iron babies get the tried and true.
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Old 05-15-2013, 09:47 AM
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Quote:
Originally Posted by BigFuel View Post
Ford is correct in my opinion. Ethyleenglycol (low silicate/Green) with the diesel additive is what is used in our older Engines. Gold and Orange Rad Fluids are for '02 DuraMaxes / Cummins and '03 6.0 PSDs and new engines (as according to my books at the shop). Something to do with mixed metal blocks and heads. Our all Iron babies get the tried and true.
Sweet so green is good. I just add the F?-15 every 15K and i be good?

Another question, when flushing, how do i flush with distilled water? i mean i have a hose i can run through it, but it ain't distilled water coming out. I can't imagine how to put a bottle of distilled under enough pressure to act like a hose.

Thank you
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Old 05-22-2013, 07:44 AM
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Originally Posted by BigFuel View Post
Ford is correct in my opinion. Ethyleenglycol (low silicate/Green) with the diesel additive is what is used in our older Engines. Gold and Orange Rad Fluids are for '02 DuraMaxes / Cummins and '03 6.0 PSDs and new engines (as according to my books at the shop). Something to do with mixed metal blocks and heads. Our all Iron babies get the tried and true.
What happens if you use NEW coolant in an older engine?

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Old 05-22-2013, 07:54 AM
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Expensive to switch but once you do I don't think there is anything wrong with the CAT stuff. The others I don't know about. Not willing to try. That and reading the new coolants sold around here it says on the bottle not for diesel before '02. I do know that you cannot run our older stuff in new engines.
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Old 05-22-2013, 10:04 AM
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Originally Posted by BigFuel View Post
Expensive to switch but once you do I don't think there is anything wrong with the CAT stuff. The others I don't know about. Not willing to try. That and reading the new coolants sold around here it says on the bottle not for diesel before '02. I do know that you cannot run our older stuff in new engines.
ok thank you, there are a lot of questions without a reasonable or true answer.

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Old 05-22-2013, 01:13 PM
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bill (alberta 7.3) was running ELC in his 97 OBS, I think it was the CAT coolant. you could ask him
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Old 05-22-2013, 01:18 PM
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CAT coolant is approved since it is the same coolant from back to 94-ish. It's the non CAT coolants I don't know about but say on the bottles "not for Diesels before '02"
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Old 05-22-2013, 01:20 PM
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didn't know that. and green coolant is the only "approved" coolant for the 7.3 until 2/99 motor build date, don't ask me why
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Old 05-22-2013, 01:22 PM
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L99 on did have the compressed graphite (or nodular Iron, or some weird crappy metal) blocks. Maybe that metal does something with the green stuff
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