vc9 question
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vc9 question
I'm about half way through my oil cooler R&R. I couldn't run my truck too much before doing the work because the EGR cooler was leaking too much and I was afraid of hydrolocking the engine. When I drained the radiator I got about 3 or so gallons out, I'm assuming the rest is in the block? The coolant looked ok, but I want to do a vc9 flush anyway. Would you guys recommend doing the vc9 after the oil cooler R&R? I don't want to plug my new oil cooler. Not that it matters, but I will be installing a coolant filter also.
Thanks!
Thanks!
Posting Guru
Joined: Nov 2010
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From: Eagle Mountian, Utah
I read about a guy that flushed after he installed his new cooler. And that one plugged up seemingly right out of the box. He could have just been horribly unlucky. But who knows, I wouldn't vc9 after the new ones in. But that's just me.
Elder User
Joined: Aug 2010
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From: NV
My EGR cooler also failed and so I had to do the same thing. First you replace the failed cooler and then you flush. I used two bottles of VC-9 and the first flush was black, I lost count of the number of tap water flushes. Finally I had a flush that was light yellow and I did the last flush with distilled water. The distilled water drain was clear. I did add a coolant filter so the amount of crap in it should indicate what might be in the new engine cooler. I should mention that it was only color that came out of the radiator and not sand or chunks.
I filled with 3.5 gallons of Cat ELC and topped up with distilled water because it was a little cheaper than Rotella ELC. Also the Rotella was only sold by the case, Cat let me buy four gallons. Undiluted ELC took a little work to find, most places only sold the pre-mixed, including International.
I suppose you could replace the EGR cooler, flush and then replace the engine cooler but that sounds like a lot of work!
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Joined: Aug 2010
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From: NV
I think I still have the bottles in the garage, I'll read the fine print when I get home, if there is any!
**I must have thrown the empties out last week when I was cleaning up.
Anyone else have a bottle to see what type of acid is in VC-9?
****
From the MSDS below:-PHOSPHONIC ACID
**I must have thrown the empties out last week when I was cleaning up.
Anyone else have a bottle to see what type of acid is in VC-9?
****
From the MSDS below:-PHOSPHONIC ACID
Last edited by davidkstyler; Dec 13, 2010 at 08:54 PM. Reason: Update
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I think I might hold off on the vc9 flush, its getting a bit cold outside to be playing with water. I think I'll top it off with 50/50 Ford, add the coolant filter and flush in the spring.
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From: Ethel WA.
Here is the MSDS sheet link http://fcsdchemicalsandlubricants.co...us181632us.pdf
it can tell you lots about what is in it and what to do and not to do
one of the main things i read in it is keep it away from caustics and bleach.
Smokeploe
it can tell you lots about what is in it and what to do and not to do
one of the main things i read in it is keep it away from caustics and bleach.
Smokeploe
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I think I still have the bottles in the garage, I'll read the fine print when I get home, if there is any!
**I must have thrown the empties out last week when I was cleaning up.
Anyone else have a bottle to see what type of acid is in VC-9?
****
From the MSDS below:-PHOSPHONIC ACID
**I must have thrown the empties out last week when I was cleaning up.
Anyone else have a bottle to see what type of acid is in VC-9?
****
From the MSDS below:-PHOSPHONIC ACID
Awesome, Thanks for looking that up!
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