Fuels, Lubricants, and Coolant/Engine Coolant Specifications ENGINE COOLANT SPECIFICATIONS—CONTINUED RG7298 -UN-13FEB95 02 9 Supplemental Coolant Additives (SCA’s): IMPORTANT: Check inhibitors between drain intervals. Replenish inhibitors by the addition of a supplemental coolant additive as necessary. See your vehicle operator’s manual for details. IMPORTANT: DO NOT over-inhibit antifreeze solutions, as this can cause silicate-dropout. When this happens, a gel-type deposit is created which retards heat transfer and coolant flow. DO NOT use soluble oil. NOTE:
John Deere Prediluted Antifreeze/Summer Coolant, John Deere Antifreeze/Summer Coolant Concentrate, and John Deere COOL-GARD contain supplemental coolant additives (SCA’s). However, as the coolant solution loses its effectiveness, additives will need to be added. Additives eventually lose their effectiveness and must be recharged with additional liquid coolant conditioner. See label on container for recommended service intervals and concentration rates. See REPLENISHING SUPPLEMENTAL COOLANT ADDITIVES (SCA’S) BETWEEN COOLANT CHANGES, later in this group. Inhibit the antifreeze-coolant mix with a non-chromate inhibitor such as John Deere Liquid Coolant Conditioner.
SCA’s guard against rust, corrosion, and liner pitting. ALWAYS follow the supplier’s recommendations printed on the container. Contact your authorized servicing dealer or engine distributor, if there are further questions. John Deere Liquid Coolant Conditioner is available in the following sizes: —TY16004 473 mL (16 oz) container —TY16005 3.8 L (1 US gal) container RG,COOL3A,CTM -19-23FEB95 CTM42 (24MAR95) 02-9 6076 Diesel Engines—S.N. (500000— ) 160101 PN=28