George, I'm pretty sure distilled water is de-ionized. But there are other ways to make de-ionized water besides distillation, notably reverse osmosis, so I think 'de-ionized' is just a generic term for what we usually call 'distilled' water. Distillation is a particular process, but it takes a lot of energy so reverse osmosis is preferred for industrial-scale production of de-ionized water.
As for what's special about Toyota antifreeze, the main thing is the additive package. Old-school antifreeze used what we now call 'non-organic' corrosion inhibitors. (Remember the Prestone ads that touted their 'silicone-silicate' formula?) Non-Organic Additive Technology, or NOAT for short. NOAT antifreeze has pretty much gone by the wayside in favor of Organic Additive Technology (OAT) antifreeze. Dex-Cool is an example of OAT, and I believe all the US manufacturers specify OAT antifreeze.
The European and Japanese manufacturers have each come up with their own variations on OAT antifreeze that combine OAT and NOAT additives, so they're called Hybrid Organic Additive Techology (HOAT). The European antifreeze contains silicates is called Si-HOAT. The Japanese version contains phosphates, so it's called P-HOAT.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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1965 International Harvester McCormick Farmall cub tractor 2,500. Two owner tractor. My grandfather bought new in 1966, then we inherited it. Have all the paperwork original manual and all maintenance records. It starts and moves. Comes with underbelly mower, plough, and some other attachments.
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