zorback
New member
Is it necessary to add a coolant additive with the anti-freeze to help protect the engine. This is a deisel engine.
Yanmar 1802d engine coolant additive
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284 International
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- International Harvester 284
The people here who know about such things recommend regular antifreeze at 50/50 with water. I don't see how it would hurt anything to run a diesel-type antifreeze solution, but it's not a requirement. Some use Water-wetter or other surfactant products. I run it in my racing motorcycle (which runs hot at slow speeds) with about 80/20 water/antifreeze and it has helped just enough to usually keep me from boiling over.
I would say don't overthink it. Buy a gallon of coolant and jug of distilled water. If you want, add some Water-wetter or equivalent. Most importantly, make sure the radiator and its screen are clean and unobstructed. Thse tractors are 30 years old, and the original farmers, I have read, were notorious for using silty rice paddy water in them. Whatever you use it will be better than that.
A 30 year old car would be assumed to need a rodding out of the radiator or replacement of the core, so we're lucky the things are so well engineered and built that most don't. Yours may; it's not that expensive at a radiator shop.
I run whatever coolant is cheapest on sale with distilled water. Since my machines do have wet sleeves, it wouldn't be bad or wrong to run the heavy duty coolants, but without the rest of the cooling system in good order (like a proper radiator cap that holds sufficient pressure) personally I see it as a moot issue. If you're worried about it though, run the additive or heavy duty coolant. Just don't add the supplement to a coolant that already has extra additives in it.
I would say don't overthink it. Buy a gallon of coolant and jug of distilled water. If you want, add some Water-wetter or equivalent. Most importantly, make sure the radiator and its screen are clean and unobstructed. Thse tractors are 30 years old, and the original farmers, I have read, were notorious for using silty rice paddy water in them. Whatever you use it will be better than that.
A 30 year old car would be assumed to need a rodding out of the radiator or replacement of the core, so we're lucky the things are so well engineered and built that most don't. Yours may; it's not that expensive at a radiator shop.
I run whatever coolant is cheapest on sale with distilled water. Since my machines do have wet sleeves, it wouldn't be bad or wrong to run the heavy duty coolants, but without the rest of the cooling system in good order (like a proper radiator cap that holds sufficient pressure) personally I see it as a moot issue. If you're worried about it though, run the additive or heavy duty coolant. Just don't add the supplement to a coolant that already has extra additives in it.
Ginormous
Gold Member
I seem to recall seeing on here someone post the results of some experiments he did. I believe he saw a 20 degree drop in coolant temperature using the Water Wetter. Try searching and you can read his results for yourself.
