Product Description
STARFIRE DEF is a mixture of 32.5% high purity urea and 67.5% deionized water used in Selective Catalytic
Reduction (SCR) systems on diesel engines. DEF is the primary ingredient used to help convert diesel
powered bus, car and truck NOx emissions to harmless nitrogen and water. STARFIRE DEF is stable,
colorless, non-flammable, non-toxic and is classified as minimum risk for transportation. Conforms to the
ISO 22241-1 spec for DEF, is API registered and meets or exceeds all OEM specifications.
