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Crate motor installed, what coolant to use?

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Old Jun 28, 2020 | 03:54 PM
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Rion Commerford's Avatar
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Crate motor installed, what coolant to use?

Hi all,
I just bought a '99 250SD with the v10. I know the owner's manual says to use VC-5, but the previous owner had the crate motor installed by the dealer at 120k and it's running VC-7. I'm assuming this is because the motor they installed was not a '99. Is there any way to tell what year the motor is? (the receipt he sowed me didn't say the year on it) Should I stick with VC-7 next flush or revert to the manual recommended VC-5?
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Old Jun 28, 2020 | 06:35 PM
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I think I would stick with the VC-7. The reman I am putting in my 06 specifies the same.
 
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Old Jun 28, 2020 | 06:36 PM
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Double post
 

Last edited by barnes80; Jun 28, 2020 at 06:37 PM. Reason: Apparently I have a stutter
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Old Jun 28, 2020 | 07:14 PM
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Using VC7 with a full flush is the correct way even back in 2004 we used the then new VC7 to flush and fill the old green systems. The VC7 has proven to be a very good coolant.
 
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