Stock Fluid In 630 Sms Radiator?

Discussion in '610/630' started by rocko, Jul 28, 2011.

  1. rocko Husqvarna
    AA Class

    Location:
    San Diego
    Husqvarna Motorcycle:
    630 SMS
    Other Motorcycles:
    SV650
    I noticed the fluid in the overflow reservoir is bluish....I've never seen coolant/antifreeze in that color.

    Since I never have to worry about my bike freezing, I was going to put water wetter in the radiator, but if the stock fluid is already good enough, I guess I don't need to. Anyone know what it is?

    Thanks! :thumbsup:
    rocko, Jul 28, 2011
    #1

  2. HuskyBrutha Husqvarna
    AA Class

    Husqvarna Motorcycle:
    SM630
    Other Motorcycles:
    690 R, 500 EXC, XR250
    Check the owner hand book in the Specifications - Fluids section, there they name the radiator fluid.
    Was reading it last night
    HuskyBrutha, Jul 29, 2011
    #2

  3. pluro Husqvarna
    B Class

    Location:
    wv
    According to the manual, the stock cooling fluid is Castro motorcycle coolant, a British product, I can't find here in WV. What should I use instead? Does anyone have experience with Evans NGPR?
    pluro, Aug 3, 2011
    #3

  4. RDTCU Husqvarna
    Pro Class

    Husqvarna Motorcycle:
    '11 630SMS
    It's plain ol' ethylene glycol with a different dye, and the green Honda stuff works just fine.
    RDTCU, Aug 3, 2011
    #4