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aboeck3's avatar
aboeck3
Explorer
Aug 22, 2014

generator coolent

I am looking for a brand name for the coolant for a Cummins/Onan diesel generator. All the manual says is a ethelene or propolene glycol without a rust inhibitor. What is in it now is blue (like windshield washer fluid). Does anyone have a brand name for the correct coolant for this generator?
Class A

6 Replies

  • wcjeep's avatar
    wcjeep
    Explorer
    Aug 23, 2014
    Just because something says "Universal" or made for diesel does not mean it will work. Call Cummins with the engine number. Do not mix and match coolant types.
  • B_s_Bunch's avatar
    B_s_Bunch
    Explorer
    Aug 22, 2014
    wolfe10 wrote:
    Actually, with a 2014 model, I would check with Onan to see what they used from the factory. There is no reason to guess or take a chance on mixing coolants of different chemistries.
    x2
  • wolfe10's avatar
    wolfe10
    Explorer
    Aug 22, 2014
    Actually, with a 2014 model, I would check with Onan to see what they used from the factory. There is no reason to guess or take a chance on mixing coolants of different chemistries.
  • MountainAir05's avatar
    MountainAir05
    Explorer II
    Aug 22, 2014
    Sort of a personal preference but some good reading here.


    http://www.rvcruzer.com/coolant.php
  • Trackrig's avatar
    Trackrig
    Explorer II
    Aug 22, 2014
    I would find out which antifreeze is in the main engine of your Itasca MH and see if it's compatible with the generator. Then you only have to carry one spare jug of antifreeze and you can't accidently get them mixed up. I'd also do the same with the engine oils.

    Bill

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