ad356 wrote:i did the antifreeze in my cub today, i did not know how long it has been in there so i changed it. i like to spend $10 or less and change out old fluids it is cheap insurance i think. anyways antifreeze that came out looked good no nasty surprises no sludge or anything else that doesnt belong. i took 4 2 liter pop bottles out when i emptied. i refilled with 1 jug of full strength antifreeze and 1 gallon of water which gives me a 50% mix water to antifreeze. i didnt premix and i didnt realize that might be an issue i think the water and antifreeze should easily mix on its own. i did know it was thermoshipon but it still circulates; am i going to have an issue with my method or will everything mix on its own like i think it should. am i going to have an issue, i certainly don't want my tractor to freeze
The antifreeze will mix in a thermosiphon system "just fine". That is how I put antifreeze in my cubs. Did 2 this spring and one last weekend. There are some caveats: Need to run the engine so there is some flow, won't work well if the temp is below freezing, the water may freeze once it hits the cold radiator core.
The problem with the tester may be a change in the floats or it may just be contamination and sediment on the floats. Washing after use may be a good idea.