Performance Comparison of Turbo Oil 2197 and Competitor HPC Oil

This case study documents the evaluation of Eastman Turbo Oil 2197 in comparison to a competitor's high performance capable (HPC) oil used in the engines of a BK-117 helicopter operated by Dare MedFlight. The objective of the evaluation was to assess the thermal stability and coke buildup in the engine vent tubes while using both oils. The study outlines the methodology, which included a side-by-side performance comparison over a specified service period. Results indicated that Turbo Oil 2197 exhibited significantly less coke buildup in the vent tubes, leading to improved engine operation and reduced frequency of required cleanings. The findings suggest a potential shift in industry practices towards an inspection-based system for determining cleaning intervals, rather than relying solely on service hours. The conclusive data supports the advantages of Turbo Oil 2197, highlighting its superior thermal stability compared to the competitor's product, thereby influencing Dare MedFlight's decision to adopt this oil for their operations.