Why Greenwood Aerospace Recommends Eastman™ 2380 Turbine Oil for Cold Weather Ops

The key to turbine engine longevity boils down to one critical component: the oil. It’s as simple as that, really. A thousand other things are going on at any given time, but the oil keeps it in top shape and allows for thousands of hours between overhauls. 

This is especially important during the cold weather, which is particularly hard on engines and components. Turbine oils are formulated to increase the standard performance capability in all environments, including low temperatures. 

Greenwood Aerospace recommends Eastman™ 2380 turbine oil for all operating conditions for improved reliability and reduced sludge formation at low temperatures, so let’s take a look. 

Aircraft Engine Oils

The world of commercial and military jet aircraft is one of the most demanding in the world. Engine lubrication is one of the main safeguards in these harsh environments. Eastman™ Turbo 2380 has long been recognized as a top-tier 

Eastman™ 2380 is compliant with MIL-PRF-23699 STD and SAW AS5780 SPC and is compatible with several widely used turbine engines and associated accessories that rely on turbine oil for smooth operation. 

Eastman 2380 is performance-engineered for dependable synthetic lubrication, offering a balanced combination of oxidative stability, low volatility, and a high degree of metal protection. Regular use of Eastman™ Turbo Oil 2380 reduces sludge buildup, minimizes wear, and increases the machinery's readiness. 

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Turbo Oil Benefits

You can’t just use any old turbine oil for your fleet; you need a performance-driven solution that meets the harsh demands of military and commercial aviation. 

One of our favorite features of Eastman™ 2380 is its ability to improve the performance of drivetrain accessories. This oil’s formulation neutralizes copper effects, reduces oxidation, and minimizes sludge buildup. 

Prince point is always an important consideration. We always aim to keep our products affordable, and with our GSA Schedule, you can shop them on GSA Advantage and know exactly what you will pay. 

Cold Weather Ops

Perhaps most importantly, Eastman™ 2380 performs at the highest level across various temperatures. Flying in the cold presents unique challenges for turbine engines. Oil viscosity changes radically in the cold, so without the right oil blend, you will face slow starts and, more importantly, a severe reduction in lubricating efficiency. 

Eastman™ Turbo Oil 2380 is designed to address these issues. Its high oxidative stability means consistent performance over time, and low volatility means less oil loss and performance degradation in extreme conditions.

For cold-weather operations, this means smoother starts, lubrication from when the engine turns over, and protection from wear in cold environments. Adding Turbo Oil 2380 to your winter maintenance plan is a proactive way to keep your aircraft safe, efficient, and ready to fly.

Eastman™™ Turbo Oil 2380 – Technical & Safety Overview


Eastman™ Turbo Oil 2380 is a five cSt synthetic aviation turbine oil widely used in commercial aviation. It was one of the first turbine oils to meet MIL-PRF-23699 STD and SAE AS5780 SPC standards. Known for balanced oxidative and thermal stability and excellent low-temperature performance, it extends on-wing accessory life, improves reliability, and provides superior copper passivation to reduce oxidation and sludge formation.

Typical Properties

  • Density @ 15°C: 0.9749 kg/L
  • Viscosity: 4.97 mm²/s at 100°C, 24.2 mm²/s at 40°C, 7,950 mm²/s at –40°C
  • Pour Point: –57°C
  • Flash Point: 265°C
  • Total Acid Number: 0.43 mg KOH/g
  • Evaporation Loss (6.5 hrs @ 204°C): 3.0%

Applications

  • Designed for aerospace turbine engines and accessories
  • Ideal for cold-weather operations
  • Compatible with common aircraft materials and systems

Safety Data Summary

Classification & Hazards

  • OSHA GHS Classification: Not a hazardous substance or mixture
  • GHS Label Elements: None required
  • Other Hazards: None known

Composition

  • N-Phenylbenzenamine reaction products with 2,4,4-trimethylpentene: 1–5%
  • Tricresyl phosphate: <3%
  • N-phenyl-1-naphthylenamine: <2.5%
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First Aid Measures

  • Inhalation: Move to fresh air; oxygen if needed; seek medical attention if symptoms persist
  • Skin Contact: Wash with soap and water; remove contaminated clothing
  • Eye Contact: Flush with water for 15 minutes; get medical help if irritation occurs
  • Ingestion: Rinse mouth; call physician/poison control immediately; do not induce vomiting

Firefighting Measures

  • Extinguishing Media: Water spray, foam, dry powder, CO₂
  • Avoid: Solid water stream (may spread fire)
  • Combustion Products: CO, CO₂, oxides of phosphorus
  • Protective Gear: SCBA with positive pressure

Handling & Storage

  • Avoid skin/eye contact; do not breathe vapors/mist
  • Use with adequate ventilation
  • Store tightly closed in a cool, well-ventilated area

Physical & Chemical Properties

  • Appearance: Amber liquid
  • Freezing Point: –54°C
  • Flash Point: 246°C (Cleveland open cup)
  • Kinematic Viscosity: 23–30 mm²/s at 40°C; 4.9–5.4 mm²/s at 100°C

Stability & Reactivity

  • Stable under normal conditions
  • Avoid potent oxidizing agents and ignition sources

Environmental Impact

  • Readily biodegradable (92.36% in 28 days)
  • Not classified as acutely or chronically hazardous to aquatic life

Eastman™ Turbo Oil 2380 is a proven, widely approved aviation turbine oil that offers excellent low-temperature performance, thermal stability, and oxidation resistance. It is not classified as hazardous under OSHA GHS and is readily biodegradable, making it a safe and reliable choice for commercial aviation and cold-weather turbine operations.

Why Choose Greenwood Aerospace for your Turbine Oil

First, when you partner with Greenwood Aerospace, you can get much more than just turbine oil. We are an approved vendor for hundreds of the most common items in military aviation. We price competitively, and our GSA Advantage listings make the process incredibly easy. 

No haggling, no contracting nightmares; the price you see is the price you pay. The U.S. Department of State also approves us as an ITAR-registered company, which enables us to partner with large defense contractors on various military initiatives involving the export of ITAR-controlled items. We hold the following certifications:

UEI: KVSUYYSJS174

DUNS: 604006874

Cage Code: 2Y735

ITAR DDTC Export Compliant

AS9120B QMS Certified

NAICS: 488190, 336413, 332722, 336411, 336413, 481212, 532411

For any questions, expedited delivery requests, large order inquiries, or to confirm product availability, reach out to Greenwood Aerospace at gsasales@greenwood.aero or give us a call at 580-865-6000 or 833-GSA-EBUY (833-472-3289). As a proud Native American-owned, HUBZone-certified small business, we are committed to delivering high-quality service with rapid, reliable delivery.