1/23/2024 0 Comments Using hoat coolant in old cars![]() When these little bubbles collapse its like tiny explosions which damage the water jacket by corrosion and cause more heat in that spot. Its no good submerging metals in hot water because those hot spots can't be created that way so its not a real test for this. These bubbles of vapour create cavitation and that forms hot spots in the water jackets, because where these bubbles exist, the heat cannot be transferred. The vapour produced takes up much more volume than the water and its this that creates the pressure. The water isn't allowed to actually boil because its in a sealed system, but when it heats up bubbles of vapour form in the water. I know what you are saying about specific heat capacities but the whole problem with water based coolant is cavitation. ![]() I would say that a motorcycle with an all aluminium engine is a good candidate for waterless coolant though. Obviously its not a blanket solution, there will always be vehicles that it doesn't work with but those seem to be 'exceptions to the rule'. I'm always prepared to change my views if I find new proof, and of course, everything on the planet has pros and cons. So personally I go by starting with what I already know and go from there. But that's all they are and its equally easy to find opposing ones to those if one looks hard enough. I did see your link and I've seen a few of these opinion pieces on Youtube about various things, not just this. He has another video of a long term test of various different metals immersed in different coolants, off the top of my head I don't think it came out of that very well either, certainly no better than some brands of 50/50, which have corrosion inhibiters anyway, so not sure about leaving it in for life.Ĭlick to expand.No one is offending anyone here, everything is subject to one's opinions and thoughts, and debate is good. When was the last time a well maintained modern bike or car overheated, unless it had a fault with the cooling system, it just doesn't happen anymore, and if it does the coolant is never a cause, so at best its the (expensive) answer to a problem that doesn't exist.Īlso not a single car or bike OEM recommends it, why, if its so good? Normal 50/50 doesn't reach boiling point either, unless there is something wrong with your cooling system, having a boiling point way hotter than your engine will ever reach is pointless marketing blurb. I think its been proved that it can't transfer heat as well as 50/50, thats why it runs hotter, in fact pure water has the highest specific heat capacity, the more "impurities" or additives you add the worse it gets, so 50/50 is worse than pure water and Evans waterless is worse than 50/50.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |