Coolant Question
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Mountain Pass
Joined: Feb 2017
Posts: 125
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From: Chicago
Coolant Question
Does any one know why VC7 "gold coolant" is recommended for '02-'05 Ex and '00-'01 Ex get the green coolant VC5. What changed between the the Ex's that would require a change in coolant? Why isn't VC7 backwards engineered/approved for '00-'01 Ex's like Mercon V was for their transmissions?
I am confused about what kind of coolant to use in my 2000 v10. Most posts I found were really old. RockAuto has the Motorcraft VC5 listed as the correct coolant '00-'01, but I had read that Motorcraft Gold VC7 was correct. I'm not sure what to use since the info in my owners manual is outdated by 17 years.
I am confused about what kind of coolant to use in my 2000 v10. Most posts I found were really old. RockAuto has the Motorcraft VC5 listed as the correct coolant '00-'01, but I had read that Motorcraft Gold VC7 was correct. I'm not sure what to use since the info in my owners manual is outdated by 17 years.
Last edited by Twonky; Sep 29, 2017 at 07:40 AM. Reason: Adding additional question to original post
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Mountain Pass
Joined: Feb 2017
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From: Chicago
Is motorcraft VC5 the old green coolant? What is the difference between motorcraft vc5 and gold?
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From: Media PA
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Joined: Jul 2010
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From: Media PA
I don't what the differences are but yes, I think the VC-5 is the original green coolant and the VC-7B is the newer (and assumed improved) gold.
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Thread Starter
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Mountain Pass
Joined: Feb 2017
Posts: 125
Likes: 10
From: Chicago
Does any one know why VC7 "gold coolant" is recommended for '02-'05 Ex and '00-'01 Ex get the green coolant VC5. What changed between the the Ex's that would require a change in coolant? Why isn't VC7 backwards engineered/approved for '00-'01 Ex's like Mercon V was for their transmissions?
Cargo Master
Joined: Mar 2011
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From: North Texas
From what I read, the zerex G05 is the same stuff as the Ford gold. I have run it in all of my modular and 4.0 gas Fords. My in laws own a shop north of Atlanta and he likes it a lot as well. Apparently it doesn't sludge up when mixed with unknown coolants. It is a Hybrid Organic Acid coolant or HOAT. The real danger is mixing OAT coolants with traditional. Think Dexcool sludge. However, with enough flushing, you can change coolant types.
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From: Central Coast of CA
Well, that and you lose the OAT based cavitation protection.
Stewart
Cargo Master
Joined: Mar 2011
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From: North Texas
There is no danger....none....in mixing any Heavy Duty OAT based Extended Life Coolant with a traditional "green" coolant. The only thing that happens is you lighten your wallet because of how much more an OAT ELC costs versus a traditional "Green" coolant.
Well, that and you lose the OAT based cavitation protection.
Stewart
Well, that and you lose the OAT based cavitation protection.
Stewart
I guess we will just have to disagree there. Unless it says "universal" on the side, I wouldn't chance it. I have seen sludge baths with OAT and IAT mixtures.
Logistics Pro
Joined: Jan 2011
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From: Ohio
I guess I am a rebel. I use plain ol Prestone green stuff from wally world. Says on the label you can mix with any color. Horror of horrors, last spring was the first time I have EVER used distilled water in any vehicle cooling system.
PS I use dexcool in my GM products too.
PS I use dexcool in my GM products too.
Cargo Master
Joined: Mar 2011
Posts: 2,066
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From: North Texas
The water used probably depends on where you live. I had nice water in Southern Illinois that was clear and mineral free. However the water here in Texas leaves behind nasty residue that I wouldnt want in my cooling system.