It is a mystery that has not yet been solved. In a news release issued late Monday, officials with 8 Wing Trenton say a light hydraulic fluid mist was found on some vehicles in the Trenton Canadian Tire parking lot. Canadian Tire is on the flight path to the runways at the base. Aircraft conducting flight training on Monday were inspected for loss of hydraulic fluid, but no leaks were found. The investigation by the 8th Wing Environmental Office is ongoing. People who discover the mist in their vehicles should wash them with detergent and dispose of the wash cloth according to hazardous materials handling instructions.