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The CRC Fuels for Advanced Combustion Engines working group has worked to identify a matrix of research diesel fuels for use in advanced combustion research applications. Nine fuels were specified and formulated to investigate the effects of cetane number aromatic content and 90% distillation fraction. Standard ASTM analyses were performed on the fuels as well as GC/MS and1H/13C NMR analyses and thermodynamic characterizations. Details of the actual results of the fuel formulations compared with the design values are presented, as well as results from standard analyses, such as heating value, viscosity and density. Cetane number characterizations were accomplished by using both the engine method and the Ignition Quality Tester (IQT™) apparatus.

Coolant hose for heavy duty engines are required to provide long service life under very demanding conditions. To develop a coolant hose/joint assembly to meet these requirements, a life cycle test rig has been developed that can closely simulate engine conditions in heavy duty applications. Hoses of various materials, reinforcement and construction were tested for up to 2000 hours and evaluated for retained burst strength, leakage, and serviceability. The test has correlated very well with field experience.