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Old 01-18-2014, 06:29 PM
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coolant

I need some help here. I was changing my thermostat,trying to fix my heater, the coolant was rusty brown looking so I did a flush, without looking up what type of coolant to use I went with what the guy at the auto store said to use, Prestone DEX-COOLŪ Extended Life Antifreeze/Coolant, orange. From what Ive read it sounds like I got bad intel. Do I need to flush again, wasting alot of money and time!

Thanks for any input
Allen
2002 f350 DRW 7.3
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Old 01-19-2014, 09:00 AM
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From my reading, you might want to change
Dex-cool in 2000 7.3
Check that out, maybe research other threads
I switched mine to zerex ELC - red in color - got at local Napa
Maybe someone else will speak up as well
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Old 01-19-2014, 09:02 AM
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Uhhh....Did I make a mistake when I filled my Antifreeze??? - Page 3 - Ford Truck Enthusiasts Forums
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Old 01-19-2014, 09:16 AM
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Dex-cool for GM vehicles, not fords, going to be doing another flush buddy.
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Old 01-20-2014, 03:04 AM
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I used the zerex napa elc as well. But rotella, cat, international all have an elc that are used in these trucks. If you happen to have a dealer close. Or napa can order it for you.
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Old 01-20-2014, 05:49 AM
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i use shell rotella elc and have no complaints about it. would recomend it to other diesel/ 7.3 owners. i get it at the local international dealer but a lot of truck/rest/ gas stations have. kinda hit or miss there
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Old 01-20-2014, 06:42 AM
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Quote:
Originally Posted by Vannnce View Post
i use shell rotella elc and have no complaints about it. would recomend it to other diesel/ 7.3 owners. i get it at the local international dealer but a lot of truck/rest/ gas stations have. kinda hit or miss there
x2 that dexcool is the wrong type
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Old 01-20-2014, 06:48 AM
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Agreed the Dexcool is for use in Duramax GM Rotella ELC is what I use in my 7.3 and had no problems.
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Old 01-20-2014, 06:13 PM
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The only thing that I use in Ford diesel's is a yellow antifreeze (FORD PART NAME is VC7) it is a yellow Silica free antifreeze that is designed for high temperatures and dose not leave a scalely residue that can create hot spots on cylinder walls.
Learned about it when I worked for Ford back in 98/99 when they first came out with it. originally used in any trucks that were built in Kentucky -- usually the f250/f350 and excursion models is where I found it first.
Also if you have a Carquest anywhere nearby i is also made under the Mighty Name (VC7 antifreeze right on the bottle) other parts stores carry it too but they try to sell you universal antifreeze and they say it is the same because it will mix together ---
My best advise it to choose a very good antifreeze and stay with it no matter what the outcome of any parts replacement in the future, 1) because i don't mix brands of antifreeze -unless an emergency) 2) NEVER USE DEXCOOL --it is still the worst on the market does not mix with anything, even in an emergency, And GM is still stupid enough to use the ****

Last edited by hnbperformance; 01-20-2014 at 06:20 PM.
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