Antifreeze from major manufacturers now have bitter taste to help protect dogs DogHeirs | Where Dogs Are Family Keywords: antifreeze, engine coolant, denatonium benzoate, ethylene glycol
to pets and small children. Now antifreeze and coolant made by Prestone, Old World, Valvoline, Chevron, Shell, Recochem, Safety Kleen and Exxon Mobil include the bitterant, denatonium benzoate.
The bittering agent has been used in household products and anti-nail biting formulas for decades. Over the years, there have been various legislative attempts to have the bitter substance added, but until now, there has not been nationwide action. Currently 17 states require the bittering agent be added. Consumers will likely hardly notice the 3 cents additional cost per gallon for the new additive.
The Consumer Specialty Products Association (CSPA) recently confirmed with all major marketers of the products that they are adding the bitterant in antifreeze in all 50 states. Some companies have been doing it for a couple of years while others have added the bitterant more recently.