![]() Coolant life in heavy-duty diesel engines is limited by the depletion of the corrosion inhibitors. Plus, additives used in ELC don’t deplete as fast as those in conventional coolants. ELC’s advanced technology also prevents gel formation and provides excellent protection against cylinder liner cavitation corrosion. Since Cat ELC doesn’t contain phosphates or silicates, hard water deposits in the cooling system are practically eliminated, and the low level of total dissolved solids improves water pump seal life. ![]() Some nitrites and molybdates are added to help protect the iron components in the cooling system. Instead, Cat ELC uses mono- and dibasic organic acid salts to provide maximum protection of the six basic metal alloys-copper, solder, brass, steel, cast iron, and aluminum-found in most heat transfer systems. It is free of nitrates, silicates, phosphates, borates, and amines. New chemical technology for long life Cat Extended Life Coolant incorporates an advanced formula technology with organic additive corrosion inhibitors. Own products, including any associated liabilities. Individual suppliersĪre responsible for the quality and performance of their Note: Caterpillar does not monitor or approve any products One of these requirements is extensive field testing, and Cat ELC has successfully completed over 50 million miles of testing in Cat engines. EC-1 defines the performance requirements an engine coolant must meet to be sold as an extended life coolant for Cat engines. Better protection for longer life New standards for performance Cat ELC exceeds the new EC-1 industry standard developed by Caterpillar for cooling the engine and protecting the cooling system. KLLM’s results demonstrate the longer lifeĪnd better protection available with Cat ELC. Thermostat on the right is from an engine ![]() Initial fill No Cat Extender required No Cat SCA required Extended Life Coolant Inhibitor addition Cat Extender at Cat SCAģ00,000 miles/3000 hours Every 15,000 miles/250 hoursĪdditive technology Carboxylic Acid Nitrites, Silicates (some) How Cat ELC compares to Cat DEACĬoolant change interval 600,000 miles/6000 hours 200,000 miles/3000 hours We can help you determine the right coolant for your Cat machines and engines, or you can refer to your “Operation and Maintenance Manual” or Service Publications SEBU6250 (Caterpillar Machines), SEBU6251 (Caterpillar Commerical Engines), or SEBU6385 (Caterpillar On-Highway Trucks). ![]() The system should be drained and flushed with clean water at 600,000 miles for truck engines and 6,000 hours for machines and commercial engines (no cleaning agents are required if you are already using ELC). Cat Extender should be added at 300,000 miles for truck engines and 3,000 hours for machines and commercial engines. Cat ELC Concentrate can be used to lower the coolant’s freezing point temperature below that of Premixed, which is -34☏ (-37☌). This formula ensures that water quality does not compromise engine coolant life and performance-so there’s no guessing about correct antifreeze-to-water mix or worrying about hard water scale. Cat ELC Premixed contains 50% ELC and 50% deionized water and is intended for initial fill and top-off. It meets ASTM D4985 and ASTM D5345 standards for heavy-duty, low- silicate antifreeze/coolants and ASTM D and ASTM D4656 for automotive applications. Recommended use Cat ELC can be used in all Cat diesel engines and most OEM diesel, gasoline, and natural gas engines, allowing you to inventory one coolant for your entire mixed fleet. It requires no supplemental coolant additives (SCAs) instead, Cat Extender is added once, at half the life of the coolant. Specifications are subject to change without notice.ĭeveloped, tested, and approved by Caterpillar, Cat® Extended Life Coolant lasts at least twice as long as Diesel Engine Antifreeze/Coolant (DEAC) in Cat machines and commercial engines and three times as long in Cat truck engines. The values shown are typical values and should not be used as quality control parametersĮither to accept or reject product.Extended Life Coolant (ELC) For all Caterpillar® and most OEM diesel, gasoline, and natural gas engines PREVENTIVE MAINTENANCE PRODUCTS Conventional Characteristics*īoiling protection, ☏ (☌) 15 lb.
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