CYLINDER BLOCK AS 2539883 - Caterpillar

percent concentration at all times, regardless of the concentration of antifreeze. Use supplemental coolant additive liquid OR an element (if equipped) to maintain a three to six percent concentration in the cooling system.
Never use antifreeze/water coolant only, in Caterpillar engines without supplemental coolant additive regardless of antifreeze concentration.Caterpillar or other manufacturer's products can be used as the supplemental coolant additive. Do not mix Caterpillar Supplemental Coolant Additive (Conditioner) liquid or elements with the other commercial products available; select a cooling system treatment and use it exclusively.Excessive concentration of supplemental coolant additive can form deposits which may cause engine damage, reduce the engine's heat transfer characteristics and could also accelerate water pump seal wear.
Use the 8T5296 Test Kit to check and monitor the SCA concentration for antifreeze/water coolant mixture. The Caterpillar 8T5296 Test Kit checks for concentration of nitrates in the coolant solution. Some other manufacturers' supplemental coolant additive (SCA) are phosphate based and the 8T5296 Test Kit will not provide accurate results. Caterpillar recommends that their test kit be used to check coolant solution concentration.If other than Caterpillar products are used as the supplemental coolant additive, follow the manufacturers' recommendation for cooling system treatment and test evaluation. Commercial supplemental coolant additive products must contain silicates and a minimum of 70 gr/U.S. gallon (1200 ppm) nitrites.Caterpillar liquid supplemental coolant additive (Conditioner) is available through your Caterpillar dealer in quantities that follow.Supplemental coolant additive must be added Every 250 Service Hours between initial fill and the Every 3000 Service Hours cooling system maintenance interval. Install a supplemental coolant additive maintenance element (if equipped) OR .47 liter (1 U.S. pint/16 oz) for each 75 liter (19.5 gal) of cooling system capacity Every 250 Service Hours. Pre-chargeCaterpillar Antifreeze DOES NOT require supplemental coolant additive added at initial fill, however additive is required on a maintenance basis. For systems equipped with supplemental coolant additive elements, the last MAINTENANCE element should not be replaced at FLUSH & FILL or Overhaul until the next 250 Service Hour interval. Water-Only Coolant
Although Caterpillar recommends a minimum concentration of 30 percent antifreeze, a coolant mixture of acceptable water and Supplemental Coolant Additive (SCA) can be used in applications where conditions do not require freeze protection (or where antifreeze is not available).A coolant mixture of water and SCA will cool and provide some protection to engine components, however, it will not provide normal engine service life. Antifreeze/water mixtures provide better performance life than water-only coolant.If the engine cooling system is filled with water ONLY, supplemental coolant additive (Conditioner) concentration should be maintained at 6 to 8 percent maximum. Do not exceed eight percent maximum concentration. Check with supplemental coolant additive test kit.Maintenance of the water-only coolant is the same as maintenance of the antifreeze/water coolant. The 8T5296 Test Kit can be used to evaluate the SCA concentration of water-only coolant with the following modifications to Step 3 and Step 5.STEP 3-Add tap water to the vial up to the 20 ml mark.STEP 5-With the defined procedure, the six to