Heavy Duty Motor Oils

The key to profitable operation of a truck, tractor, combine or dozer is long trouble free engine life. The primary key to long trouble free engine life is good lubrication and protection from the engine oil. Operators of heavy duty diesel equipment know the cost of parts and down time and the value of good maintance and good engine oil. Here at Doolilttle Oil we have been supplying HDMO's (heavy duty motor oils) for many years and are proud to offer the finest line up we can find. Doolittle Oil offers the following in cases, pails, 55 gallon drums and bulk:

Shell HDMOs:

  • Rotella Triple Protection 15W-40 CJ-4
  • Rotella Triple Protection 10W-30 CJ-4
  • Rimula Super 15W-40 CJ-4
  • Rotella T-6 Full Synthetic 5W-40 CJ-4 (a favorite with Honda Gold Wing riders)
  • Rotella T-1 SAE 30 CF


  • Fleet Supreme EC 15W-40  CJ-4
  • Fleet Supreme EC 10W-30  CJ-4
  • T5X Heavy Duty SAE 30 CF
  • T5X Heavy Duty SAE 40 CF
  • T5X Heavy Duty SAE 50 CF

SynGard HDMOs:

  • SynGard Synthetic Blend 15W-40 CJ-4
  • SynGard Synthetic Blend 10W-30 CJ-4
  • SynGard Full Synthetic 5W-40 CJ-4/SM
  • SynGard Full Synthetic 0W-40 CJ-4/SM   

Xtreme HDMOs

  • XTREME Universal 20W-50 CI
  • XTREME Heavy Duty SAE 30 CF


Give the experts at Doolittle Oil a shout to help you find the right HDMO for your operation.

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