Replacing radiator

[BurningBushFarm]

Thanks Clemson -- 2000D have water pumps.

Some of the other posts on overheating from last year say 30/70, 40/60. So we got the idea it is not critical. Up here (Brevard, NC area) cold not such a big beal, and it is usually in the garage in the winter anyway.

Still need a coolant capacity #

Random rabbit trail I found a Yanmar (company) marine diesel letter recommending mixing the antifreeze with distilled water. Thought that was interesting in light of some previous comments on other threads.

 

[winston1]

The ym240 holds 4.4qts. Thinking the 2000 is about the same.

 

[clemsonfor]

Yea you want to always use distilled water as there is no minerals or such in the water to create deposits. So i do it, no. Should i yes.

And yea its somewhere around a gallon but thats not important, just fill it up to the top??? I always mix my antifreeze 50/50 for cars and tuck and such and just fill till full.
Oh and i know the 2000 has a water pump thats why i said that, i have one!

 

[TCJatko]

Interestingly, pure ethylene glycol (the basis for most antifreezes) will freeze at about +10 F. Optimum freeze protection is 70 % glycol, 30% water which freezes at -60 F. So it may seem odd, but pure antifreeze provdes minimal freeze protection.
Ethylene glycol - Wikipedia, the free encyclopedia

 

[clemsonfor]

good to know, although i think i have seen different on the back of an antifreeze bottle.

quick search found this. The disclaimer kind of points contrary to wht your link says? It says it does not improve significantly but does not say it goes drastically down either like what you say?

http://www.magers.org/handy/antifreeze.html

 

[TCJatko]

I don't claim Wikipedia as an absolute authority. As you might know, Wiki articles can be posted by anyone and essentially modified by anyone. This opens any "facts" on Wikipedia to biases, fraud, or outright falsehood. I think one point to remember is that for antifreeze to work properly, you need to add water. It looks like 70% antifreeze, 30% water provides max. protection.