1199 Waterless Coolant ?

Discussion in 'Panigale' started by Scorpione67, Sep 10, 2016.

  1. Please do not confuse water temperature with oil temperature. It is very important for the oil temperature to attain 100c+ every time the bike is started to burn off any moisture in the oil as you have stated.
    I have never heard of water wetter and I cannot understand how it could have a better thermal transfer rate than pure water H2O. How could you get any more H2O than H2O itself?
    Adding antifreeze does reduce the thermal transfer rate and that is why you would never run just pure antifreeze, but we need some antifreeze as it is also anti corrosion.
    If the fans cut in at 110c then you can bet your socks that 130c is a temperature where no damage will be done, and when the fans are on I doubt if it would ever get to 130c. Just because it is a temperature that is not always seen does not mean that it is a damaging temperature.
    30c here today and i have just got back from our ride out. I very much doubt that the two females in our group, wife on her ST2 and friend on her Scrambler, even looked at the temperature gauge or would notice how hot the engine was.
    Best thing to do is not to worry about temperatures and stick some tape over the gauge if it annoys you. At one time bikes never had a temperature gauge and they never got damaged due to over heating then either.
     
  2. As far as I can discover, Evans' strategy is to replace the ordinary ethylene glycol, used mixed with water 60/40 in most antifreezes, with propylene glycol used neat, i.e. with no water. Please correct this if you know otherwise.

    Propylene glycol is non-toxic enough to be used in food products, which is good. It is more expensive, which is bad. It is less able to transfer heat than water, which is bad. It is less corrosive than water, which is good.

    Unfortunately Evans' website is long on vague, boastful waffle and short on real facts and figures. Some of the characteristics claimed for their product are also characteristics of ordinary ethylene glycol, which they omit to mention. All things considered, I would require more persuading before converting to their product.
     
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  3. The combination of the additive and the pressure means that water won't boil until approaching 130c, as you say Bob. Synthetic oil should be just fine at that temperature, so no damage until the water actually does boil. People on here have said they have experienced boiling but I can't say I have.
    Yes, the low running temperatures we get on an open road do tend to make us panic when the temperature starts to rise around 100c or more and that really shouldn't be a problem as you say.
    I don't know enough about the properties of hydrogen and oxygen to understand why the combination of the two produces the best heat transfer possible and can't be improved upon, maybe you could explain.
    The anecdotal Water Wetter tale of over-effective cooling came I think from self-styled Ducati guru, Shazaam.
     
  4. Just looked up the claim for Water Wetter and they could be correct in what they claim:
    • Superior heat transfer properties compared to glycol-based antifreeze
    They don't claim that for water and as has been said water has better HT properties than any anti freeze.
    The only reason for trying to reinvent water, that has served us well in all engines for over 100 years, is to make money, in my opinion. My bikes and car and aircraft all have engines designed to run within spec on water/anti freeze mix. I see no gain in throwing money at something that is working and cannot prove to work better.
     
  5. If your engines work perfectly within spec, then there is indeed nothing to be gained.
    However, if this stuff really does have better heat transfer properties than than the normal type of coolant mix, then it could be a way of getting the fans and radiator to work more efficiently for those whose fans do fail to control the coolant temperature well.
    Personally, I would only use it in conjunction with a thermostat that opens at a higher temperature than oem, because my engine, if anything runs too cool at decent speeds, maybe so cool that the ecu is providing a rich mixture still.

    Incidentally, a coolant mix is used not only to prevent freezing and corrosion but it also helps raise the boiling point of the coolant usefully higher than that of pure, unadulterated water.

    My 320d has a rock solid 100c oil temperature no matter what. As you say, the gauge on the Ducatis is for water temperature but that's all we have to go on.

    I feel it could be worth experimenting...
     
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