TheOldHokie
Well-known member
Lifetime Member
Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Use of hard water is definitely a problem - tons of very real and reliable research to document that.If hard water is an issue which l don't believe is a problem. Having spent twenty years in the automotive industry ten of which as a mechanic, no one l knew used water other than what came out of a hose to fill a radiator. If hard water is a concern, use the water out of a dehumidifier. Sane goes for batteries. Tap water out of hose was used to fill batteries. I'm sure it still is on serviceable batteries. Most homes have a softener system anyway. Some have mineral filters too. The issue years ago was the acid from the old anti freeze ate up seals, water pumps, hoses, and radiators, heater core. Re core of radiators was common business back in the day.
Here is another clue as to what Kubota is selling. Its a phosphated HOAT - e..g. PHOAT. Its silicate, borate, and nitrite free and very typical of Asian OEMS..
PHOAT — The difference between HOAT and PHOAT is the primary additive component, which uses phosphates rather than silicate. Honda, Toyota, Kia, Hyundai, Subaru, and Nissan typically recommend this type of coolant. Many of the aftermarket coolant manufacturers will specify “For Asian Vehicles” on the container and it is often red or blue in color.
Dan