140497 IMPORTANT: DO NOT use methyl alcohol or methoxy propanol base concentrate. This concentrate is not compatible with additives used in supplemental coolant additives. Damage can occur to rubber seals on cylinder liners which are in contact with coolant. REFERENCE ONLY DO NOT use concentrate containing less than 10% ethylene glycol. DO NOT use concentrate containing more than 0.1 % anhydrous metasilicate. This type of concentrate, which is intended for use in aluminum engines, may cause a gel-like deposit to form that reduces heat transfer and coolant flow. Check container label or consult with supplier before using.
RG .18293.COOL4 ·19·09AUG94 PN=31 DO NOT use ethylene glycol concentrate containing sealer or stop-leak additives. Ethylene Glycol Concentrate (Antifreeze): Fuels, Lubricants, and Coolant 23 If John Deere coolant products are not used, ethylene glycol concentrate (antifreeze) can be used when mixed with quality water and supplemental coolant additives (SCA's), as described below and later in this section. Use an ethylene glycol concentrate meeting ASTM 05345 (prediluted coolant) or ASTM 04985 (coolant concentrate) mixed 50% with quality water. Distilled, de-ionized, or soft water is preferred for use in cooling systems.
Mineral (hard/tap) water should NEVER be put in a cooling system unless first tested. However, water that meets the following water quality specifications is acceptable. Grains Per Gallon 2.5 5.9 20 10 If Chlorides, Sulfates, or Total Dissolved Solids are higher than the above given specifications, the water must be distilled, de-mineralized, or de-ionized before using in cooling system. If Total Hardness is higher than the above given specification and all other parameters are within the given specifications, the water must be softened before using in cooling system. ENGINE COOLANT SPECIFICATIONS pH Level . ..... ... ..... ... ...... . ...
5.5-9 .0 Water Quality Specifications Parts Per Item Million Chlorides (maximum) . .... ........ . . 40 Sulfates (maximum) .. .... . . .. .... .. 100 Total Dissolved Solids (maximum). 340 Total Hardness (maximum) . . . . .. .... . 170 Water Quality: