Provides reduced toxicity without reduced performance

LE’s Low Tox® Hydraulic Oil (6603) provides superior performance – equivalent to premium hydraulic oils – with long oil life and excellent wear protection, while providing lower toxicity than biodegradable hydraulic oils. Its advanced technology formulation – with highly refined mineral oil and specially selected ashless additives – offers low toxicity, but it does not sacrifice lubrication performance or necessitate shortening of lubricant change intervals; there is no worry of premature oxidation or failure of the lubricant as there is with most vegetable oil-based products.

Unit of Measure

Benefits and Recommendations

Available Container Size

N/A Pail

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GHS Statement

N/A For commercial and professional use only

Beneficial Qualities

N/A Environmentally Friendly
  • Exhibits very low toxicity as compared to conventional and biodegradable hydraulic oils
Premium Long-Lasting Performance
  • Performs better than conventional antiwear hydraulic oils
  • Can be used without having to lower the rated pressures of hydraulic equipment
  • Provides good rust and corrosion protection
  • Resists hydrolysis better than vegetable or synthetic esterbased oils
  • Exhibits excellent demulsibility
  • Is compatible with seals
Available Grade
  • ISO 68

Why Low Toxicity?

N/A One question confronting scientists in environmental risk assessment is whether it is better for a material to be quickly biodegraded and possess relatively high toxicity or be low in toxicity and biodegrade at a slightly slower rate. Lubrication Engineers believes that the latter option provides the best protection of the environment because it minimizes overall impact on the ecosystem.

Performance Requirements Met or Exceeded

  • Eaton Brochure 03-401-2010
  • Parker (formerly Denison) HF-0

Typical Applications

  • Hydroelectric facilities
  • Flood control structures
  • Offshore installations
  • Locks on rivers
  • Dredging equipment
  • Forestry and logging equipment
  • Construction equipment
  • Water and wastewater treatment plants
  • Paper mills
  • Mining
  • Other applications where low toxicity and minimal environmental impact is desirable.

Asset Reliability Solutions

N/A Reliability Solution Products

Customer Testimonials

Customer Testimonials

N/A 6603 City of Wadena
6603 Sithe Energies

Physical Characteristics - Typical


N/A Straw


N/A 68

Performance Test Results

Relative Density @ 60ºF/60ºF, ASTM D1298

N/A 0.885

Viscosity @ 100°C, cSt, ASTM D445

N/A 8.90

Viscosity @ 40°C, cSt, ASTM D445

N/A 68.0

Viscosity Index ASTM D2270

N/A ≥100

Flash Point °C (°F), (COC), ASTM D92

N/A 230 (446)

Pour Point °C (°F), ASTM D97

N/A -18 (0)

Microtox Bioassay mg/l, EC50

N/A >70,000

Rust Test 4 hrs @ 60ºC, Sea H2O, ASTM D665B

N/A Pass

Copper Corrosion 3 hrs @ 100ºC, ASTM D130

N/A 1b

Dielectric Strength, Kv, ASTM D877

N/A ≥35

Emulsion Characteristics @ 54ºC, oil-water-emulsion/minutes, ASTM D1401

N/A 40-40-0/10