Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › Coolant type ( blue)

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  • April 17, 2018 at 9:17 pm #31194

    Mike Mason
    Participant
    Engines: Qsb 5.9 380
    Location: San Diego
    Country: Us

    Need to top off my coolant. What is the fleetguard type coolant I need to get? Current coolant is blue.

    Thanks. Mike.

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  • April 18, 2018 at 9:11 pm #31237

    Mike Mason
    Participant
    Engines: Qsb 5.9 380
    Location: San Diego
    Country: Us

    Thanks Tony.

    April 18, 2018 at 5:52 am #31200

    Tony Athens
    Moderator
    Vessel Name: Local Banks
    Engines: QSB 6.7 550 HP
    Location: Oxnard, CA
    Country: USA

    Any Cummins 5.9 -6.7 coolant

    Any Brand name EG based coolant is good…….50-50 mix .. Fleetguard Cummins EG based coolant happens to be Blue.. Your engine IS NOT coolant sensitive like some and if you are in not in below 32F weather, just top it off with distilled water– 40-60% mix is 100% perfect for S. Calif type weather..

    Tony

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