Treacherous \Treacher*ous\, a. [See Treacher.] Like a traitor; involving treachery; violating allegiance or faith pledged; traitorous to the state or sovereign; perfidious in private life; betraying a trust; faithless. [1913 Webster] Loyal father of a treacherous son.
Fuel Safety Tips. 1  If you need to transport fuels such as propane, gasoline or oil, it should only be carried in approved containers certified by agencies such as the Canadian Standards Association or Underwritersâ Laboratories of Canada. 2  Containers should never be filled right to the top.
advertisement. Experts say you should not leave small amounts of gasoline in a gas can, or fill the gas can more than 95 percent full. Use a tight-fitting cap and store the gasoline at room temperature, not in heat or cold. Do not store gas in unapproved, untested containers like milk or soda bottles. Remember not to refill a gas can close to a hot engine, or pour gas into a lawnmower or other small machine when it is still warm from use.