Delo<sup>®</sup> XLC Antifreeze/Coolant

Delo® XLC Antifreeze/Coolant

Delo® XLC is a non-nitrited extended life Antifreeze/Coolant formulation for heavy duty and light duty diesel vehicles and equipment. Delo® XLC is formulated with an aliphatic corrosion inhibitor system available as a concentrate and a premix 50/50.

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Always confirm that the product selected is consistent with the original equipment manufacturer’s recommendation for the equipment operating conditions and customer’s maintenance practices.


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Consumer BenefitsThumbnail
Consumer Benefits

Delo® XLC Antifreeze/Coolant products deliver value through:

  • Optimal Service life — Service life of 960,000 kilometers/12,000 hours/ 6 years with no Extender needed
  • Excellent Protection — Excellent protection against pitting, corrosion and erosion even on hard to protect metals like aluminum.
  • Minimized maintenance and related costs — Requires no regular testing with proper top-up practices and helps eliminate the need for supplemental coolant additives.

Delo® XLC Antifreeze/Coolant is a heavy-duty, ethylene glycol based engine coolant which incorporates patented organic corrosion inhibitor technology called aliphatic carboxylates. Delo® XLC is a nitrite, nitrate, borate, phosphate, silicate, and amine- free formulation that provides maximum protection of the six basic metal alloys found in most heat transfer systems. Delo® XLC products do not contain phosphates or silicates which are known to contribute to hard water scale issues. Delo® XLC promotes maximum water pump seal life by eliminating inorganic corrosion inhibitors. Delo® XLC has a recommended service life of 960,000 kilometers/12,000 hours/ 6 years. This product will not require the addition of SCA’s to achieve its recommended service life. Routine visual inspections, coolant top-off and annual testing are recommended to ensure maximum service life.


Note: These products are not to be used to protect the inside of potable water systems against freezing.


Recommended applications for Delo® XLC Antifreeze/Coolant:

  • Heavy duty engines regardless of fuel type or environmental controls being used where the OEM recommends a nitrite free, silicate free coolant.
  • Mixed fleets where automobiles, light duty trucks and heavy duty trucks are being serviced and the OEM recommends a nitrite free, silicate free product.*
*Some OEM’s require the use of nitrite in heavy duty engine applications.