/// <summary>
/// Constructor.
/// </summary>
/// <param name="_odometer">current odometer to determine current mileage</param>
public System_Status(Odometer _odometer)
{
this._odometer = _odometer;
lastOilChange = _odometer.currentMileage();
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="_odometer"></param>
public TripInfo(Odometer _odometer)
{
this._odometer = _odometer;
this._tripA = _odometer.currentMileage();
this._tripB = _odometer.currentMileage();
}