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Delo XLC Antifreeze/Coolant products deliver value through:

Long Service Life

— Service life of 1,000,000 miles / 1,600,000 km / 15,000 hours, or 8 years, or 1,200,000 miles / 1,900,000 km / 20,000 hours or 8 years of diesel engine coolant system protection when properly maintained with a Delo FleetFix® CMX addition at 600,000 miles / 960,000 km /10,000 hours or 4 years.

Excellent Protection

— Excellent protection against pitting, corrosion and erosion even on hard to protect metals like aluminum.

Minimized Maintenance and Related Costs

— Recommend Delo Coolant Maintenance Kit for routine coolant testing to help detect and eliminate cooling system issues.

Heat Transfer

— Excellent heat transfer compared to silicate containing coolants.

Hardware Life

— Maximum water pump life due to no silicate formula.

Various Applications

— Excellent protection for mixed fleets where the OEM specifies a nitrite free coolant. Can be used in heavy duty engines using reduced emission protocols including or combining EGR, DPF, SCR and after-cooler technologies. This product is recommended for mixed fleet applications.

Wide Temperature Applications

— Protection against winter freeze-up and summer boil-over.


— Biodegradable in its unused form.


— Compatible with conventional antifreeze. Dilution with conventional antifreeze will reduce extended life benefits. Chevron recommends that this product not be diluted by more than 25% with other coolant formulations.


— Can be stored for 8 years in sealed containers without any effect on the product quality or performance.

Commercial Trucks, Agriculture, Cement, Power Generation, Quarry & Mining, Truck Fleets

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.
  • Recreational vehicles where a nitrite free, silicate free product is recommended.
  • Some OEM's require the use of nitrite in heavy duty engine applications.