coolant oil or water ?

Discussion in 'General Motoring' started by Jon Robertson, Jul 15, 2009.

  1. Why can't we use transmission oil as a coolant for our radiator ?Even a
    modified coolant based on oil .It seems so many water pumps wear out or
    corrode ,radiators leak ,engines and head gaskets are destroyed by water and
    still have issues when glycol is used .
    If a non flammable oil was used costs would be down as well as potential
    damage .
    Serious question serious answer please .
     
    Jon Robertson, Jul 15, 2009
    #1
  2. Jon Robertson

    James Sweet Guest



    I believe water/glycol has a much higher heat carrying capacity than
    oil. It's also a lot less messy when it leaks, it is non-flammable, and
    it will boil instead of burn if the engine does overheat.

    I don't think water pump wear has much to do with it being used to pump
    water, rather it has a relatively small bearing area compared to the
    length of the shaft and the stress placed on it by the drive belt. If it
    had a bearing on each side of the impeller it would likely last a lot
    longer.

    Most coolant related head gasket problems have to do with improper
    coolant being used. If you use the right stuff with the right additives,
    it's rarely a problem.
     
    James Sweet, Jul 15, 2009
    #2
  3. Thanks James I just firgure there has to be a better way of cooling the
    engine ...
     
    Jon Robertson, Jul 15, 2009
    #3
  4. Jon Robertson

    Gary Heston Guest

    Gary Heston, Jul 15, 2009
    #4
  5. Jon Robertson

    James Sweet Guest


    The water/glycol cooling method for the internal combustion engine has
    had a long time to mature. Honestly, I think it works pretty well, is
    relatively clean and easy to deal with, it's cheap, I think effort would
    be better spent coming up with alternative energy sources.

    I know I'd rather have water leak than oil leak. Leaked and spilled oil
    makes an awful mess when it picks up dirt and turns into engine grime,
    and that's not even considering the environmental impact.
     
    James Sweet, Jul 16, 2009
    #5
  6. Jon Robertson

    z Guest

    air cooling! toss in a flat-opposed cylinder layout for perfect
    balance without counterweights. maybe stick it in the rear of the car.
     
    z, Jul 18, 2009
    #6
  7. Jon Robertson

    James Sweet Guest


    Having spent some time messing with air cooled engines, I can say that
    while they do offer advantages, they are no panacea. It's just hard to
    remove enough heat using air alone, so they tend to run hot, and it's
    even more difficult to provide even cooling, so some parts run a lot
    hotter than others. The air cooled VW's and Porsche's are fun for sure,
    and granted they are relatively simple to work on, but the catch is that
    they *need* to be worked on frequently.
     
    James Sweet, Jul 18, 2009
    #7
  8. Actually I use a well known brand of glycol pure with clean pure water so I
    have had no issues .I see many are using diluted glycol with any water when
    they even think of it .In Tasmania I saw normal water used only with the
    thermostat taken out ,so imagine on a below zero morning what happened
    besides engine wear and LPG gas problems .Hot water is needed to stop the
    LPG gas from freezing .When a sudden cold morning hit the water would flow
    so quickly it didn't cool so parts froze and other parts boiled .Besides the
    fact the heaters didn't work too well .
     
    Jon Robertson, Jul 19, 2009
    #8
  9. I was told last night at a Volvo car club meeting the Japanese are using
    100% glycol with no problems and very corrosion free motors after importing
    them to Austalia .I had heard using 100% glycol caused temperature to rise
    ,but if it works according to a Volvo tech I am happy .Any thing to stop
    corrosion as my car sits a lot nowdays .We get the Japanese motors which are
    low milage as the cars are taxed off the road as the car gets older, so very
    good
    engines can be got for a song.They are right hand drive as well
     
    Jon Robertson, Aug 6, 2009
    #9
  10. Jon Robertson

    James Sweet Guest


    Pure glycol will work, although the boiling point is lower and the
    freezing point higher than a water/glycol mix, and it is less effective
    at transferring heat. Volvos tend to have oversized cooling systems
    though so you *may* not have any problems. I don't see much of a
    corrosion problem running the standard mix though.
     
    James Sweet, Aug 6, 2009
    #10
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