TM   5-3805-258-10 COOLANT  SPECIFICATIONS ENGINE COOLANT Use a mixture of fill water and antifreeze. FILL  WATER Acceptable water for use in the ethylene glycol-type antifreeze and water mixture is shown on the chart below: ACCEPTABLE WATER WATER CONTENT 50% OR MORE ANTIFREEZE LESS THAN 50% ANTIFREEZE Chlorides 100 ppm or less 50 ppm or less Sulfates 100 ppm or less 50 ppm or less , Hardness as Ca Co₃ 200 ppm or less 100 ppm or less Dissolved Solids 500 ppm or less 250 ppm or less pH 6.5 or higher 6.5 or higher ppm = parts per million ANTIFREEZE Use   MIL-A-46153,   Antifreeze,   Ethylene   Glycol,   Inhibited,   Heavy   Duty   and   follow   the   instructions   for use   in   TB-750-651,   Useof   Antifreeze   Solutions   and   Cleaning   Compounds   in   Engine   Cooling   Systems. REFILL CAPACITES These refill capacities are approximate and are not intended for exacting purposes, such as billing. They are for use as a guide when filling systems. Follow the recommendations in the guide when checking the levels of compartments or systems. U.S. METRIC IMPERIAL COMPARTMENT   OR   SYSTEM MEASURE MEASURE MEASURE Engine  Crankcase 6 gals. 22 Itr. 5 gals. Transmission 9 gals. 34 Itr. I 7 . 5    g a l s . Hydraulic  Tank 22 gals. 83 Itr. 1 8 . 3    g a l s . Fuel Tank 60 gals. 222 Itr. 5 0     g a l s . Front Differential & Final Drives 8.5 gals. 33 Itr. 7     g a l s . Rear   Differential&   Final   Drives 10 gals. I 38 Itr. 8.3 gals. Cooling System 9 gals. 34 Itr. 7.5 gals. 80