Mobil Delvac 1™ ESP 5W-40 helps Grupo Construcciones Planificades extend equipment engine life success story

Mining truck


To extend oil drain intervals and the life of equipment engines

  • CAT ACERT C-32 Engines, Series 777F/G & 992K
  • Grupo Construcciones Planificadas S.A. de C.V.
  • Hermosillo, Sonora, México


Grupo Construcciones Planificadas (Construplan), one of the most productive mining contractors in Mexico, currently has a fleet of 42 trucks 777F/G and 12 chargers 992K. Since Construplan started operations in the mining sector, their goal was to maximize production and generate a higher return on investment.

To meet these objectives, the company sought the expertise of ExxonMobil engineers and its distributor Circulo Llantero’s engineers to successfully implement an advanced synthetic heavy-duty diesel engine oil that can help extend drain intervals beyond OEM recommendations of 250 hours.


Grupo Construcciones Planificadas decided to implement Mobil Delvac 1™ ESP 5W-40, a fully synthetic lubricant for superior diesel engine performance in all units.

ExxonMobil also recommended participation in the routine Mobil Serv Lubricant Analysis program to establish the optimal drain period and assess the condition of the engines.


Use of Mobil Delvac 1 ESP 5W-40 lubricant, complemented by routine Mobil Serv Lubricant Analysis, has helped Grupo Construcciones Planificadas achieve operating cost savings averaging more than US $20,000 per vehicle, based on the following benefits:

  • 55,000 additional carrying tons per haul truck annually (due to increased truck availability)
  • Oil drain intervals extended to 1,250 hours
  • Reduction in disposal of used oil up to 80 percent per unit
  • Doubled hours between engine repairs

*This success story is based on the experience of a single customer. Actual results can vary depending upon the type of equipment used and its maintenance, operating conditions and environment, and any prior lubricant used.

* ExxonMobil shall include Exxon Mobil Corporation and its affiliates.

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