AeroShell Turbine Oil Ascender - MIL-PRF-23699G Grade HTS / SAE AS5780D Grade HPC - 550042547, 550042575

AeroShell Ascender was developed for the latest generation of gas turbine engines as a thermally stable, low-coking, high-elastomer compatibility product. Thanks to its extensive testing for elastomer compatibility – a known service problem – it achieves the optimum balance between anti-coking, thermal stability, and elastomer compatibility; this will ensure reduced coke formation in engines, so any traditional engine problems associated with coke are significantly reduced.

Features:

• Excellent elastomer seal compatibility. You can use AeroShell Ascender and worry less about your seals swelling or degrading prematurely.
• Low coking performance. There’s less chance of oil coke build-up in bearing chambers and service pipes. This means you’ll reduce your maintenance and cleaning costs.
• Improved oxidation and thermal stability. Your oil will last longer during arduous engine conditions.
• Excellent compatibility with other approved oils. Switch from another approved oil to AeroShell Ascender without any concerns and issues.
• A ‘high performance capability’ grade oil. AeroShell Ascender performs better than traditional ‘standard’ grade oils, which can reduce maintenance costs and extend engine life.

Specifications:

• US – Approved SAE AS5780D HPC Grade, Approved MIL-PRF-23699G HTS Grade
  
• British – Equivalent DEF STAN 91-101
• French – Equivalent DCSEA 299/A
• NATO Code – O-154
• Joint Service Designation – Equivalent OX-27
• Viscosity: 5 mm2/s at 100°C (212°F)
• Flash point: 250°C (482°F)
• Pour point: -55°C (-67°F)
• Thermal stability: Excellent
• Oxidation stability: Excellent
• Elastomer compatibility: Superior
• Coking tendency: Low