Products: Lubes & Fluids
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Extended oil-drain intervals

Mack Trucks has announced extended engine oil drain intervals for customers using its newly formulated genuine Mack Engine Oil EOS-4.5. Depending on the application, intervals have been extended by up to 15,000 miles compared with previous formulations, helping reduce customer maintenance costs. Introduced as the factory fill in the company’s 2017 engines, it also extends drain intervals for all 2011 and newer Mack engines.

The new lube is not simply a re-branded version of another engine oil on the shelf,  says Mack. It's actually a proprietary formula properly tested and approved with Mack equipment.

With EOS-4.5, drain intervals have been extended to 60,000, 50,000 and 40,000 miles for long-haul, regional-haul and heavy-haul applications respectively. During the life of a truck, these extensions allow customers to skip between four and 16 oil drains, helping save hundreds of dollars per year per truck.

Mack Engine Oil EOS-4.5 is available in 10W30 and 15W40 weights and offers protection above and beyond the API CK-4 specification by requiring enhanced performance for oil oxidation and oil aeration control. It's also formulated with a lower viscosity, helping improve fuel efficiency, even under high loads and high ambient temperatures.

The oil can be used anywhere API CK-4 oils are recommended and is also fully backward compatible with all API CJ-4 applications.

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Mack EOS-4.5 engune oil