Heavy Duty Engine Oils

Drydene DieselALL­® HD 10W

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DRYDENE DIESELALL® HD 10W is a low ash, single viscosity engine oil designed for use in older model diesel engines in both on-highway and off-highway applications as well as hydraulic systems requiring a high-zinc 10W engine oil.



DRYDENE DIESELALL® HD ENGINE 10W is recommended for use in a variety of heavy-duty diesel engine types:

  • Naturally aspirated, turbocharged or supercharged (four-stroke) requiring a single viscosity  fluid.
  • Older model mobile farming, mining and construction equipment.
  • Formulated for older model engines operating on low, medium or high sulfur diesel fuels.

DRYDENE DIESELALL® HEAVY-DUTY 10W is suitable for use in hydraulic systems on Caterpillar® equipment where a high zinc 10W engine oil is specified as well as various manual, semi-automatic and power-shift transmissions specifying either Caterpillar TO-2 or Allison C-4 transmission fluids.



DRYDENE DIESELALL® HD 10W is blended from premium base stocks and specific additives to provide dual-purpose performance in both crankcase and hydraulic systems.

  • Detergent and dispersant additives help maintain engine cleanliness, suppress varnishing and aids in suspension of soot and contaminants in the oil.
  • Robust anti-wear additives help extend regular drain intervals and overall engine life even in high operating temperature applications.
  • Reliable performance in cold weather applications, especially in hydraulic systems.



  • API Services Category CF
  • CAT Hydraulics where Diesel Engine Oil is recommended
  • MIL-L-46152D




Viscosity @ 40°C, cSt ASTM D445 42.85
Viscosity @ 100°C, cSt ASTM D445 6.796
Viscosity Index ASTM D2270 114
Color ASTM D1500 2.5
Flash Point °C ASTM D92 206
Pour Point °C ASTM D5950 -37
Zinc, wt.% ASTM D5185 0.087
Calcium, wt.% ASTM D5185 0.16
Phosphorous, wt.% ASTM D5185 0.077
TBN, mgKOH/g ASTM D2896 7.0