What is the maximum mg/L limit for JP5 fuel (CFD)?

What is the maximum mg/L limit for JP5 fuel (CFD)?

• A. 1.5
• B. 2.0
• C. 2.5
• D. 3.0

Answer: (B)

Fuel cleanliness limits specify how much insoluble material can be present in JP5 per liter to protect the fuel system. The CFD standard sets the maximum allowable level at 2.0 mg/L for JP5 fuel. Staying at or below this limit helps prevent filter plugging, injector or pump fouling, and overall engine performance issues in flight operations. Values under the limit, like 1.5 mg/L, do meet the standard but aren’t the maximum; values above the limit, such as 2.5 mg/L or 3.0 mg/L, exceed the specification and could lead to fuel-system problems.

Fuel cleanliness limits specify how much insoluble material can be present in JP5 per liter to protect the fuel system. The CFD standard sets the maximum allowable level at 2.0 mg/L for JP5 fuel. Staying at or below this limit helps prevent filter plugging, injector or pump fouling, and overall engine performance issues in flight operations. Values under the limit, like 1.5 mg/L, do meet the standard but aren’t the maximum; values above the limit, such as 2.5 mg/L or 3.0 mg/L, exceed the specification and could lead to fuel-system problems.