Calibrating fluids is a petroleum mixture that is manufactured with precision to simulate the chemical and mechanical properties of diesel fuels. These fluids are available as proprietary formulations and are mainly used to calibrate the components used in the fuel systems of aircraft and other diesel and turbine engines. When used regularly, calibration fluid will increase the engine's performance and maximize fuel economy. Calibration fluids act by breaking down the gums and peroxides within systems for cleaner engine operation.
Calibration fluids are considered a hazardous material by OSHA and must be carefully handled and stored. Acute toxicity is possible if directly inhaled or swallowed and the compound is also an irritant to skin. Calibration fluid has corrosive properties to human tissue, so gloves, goggles, and other protective equipment should be worn when handling calibration fluids.