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IT'S MORE THAN JUST OIL. IT'S LIQUID ENGINEERING.

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  4. DIESEL EXHAUST FLUID (DEF)

DIESEL EXHAUST FLUID (DEF)

Diesel Exhaust Fluid (DEF) is used as a consumable in vehicles fitted with selective catalytic reduction (SCR) after-treatment device, in order to lower NOx concentration in the exhaust emissions from diesel engines. A wrong solution could damage the SCR system and cause issues in its functioning.
DIESEL EXHAUST FLUID

DIESEL EXHAUST FLUIDS

Castrol Diesel Exhaust Fluid

Castrol DEF is a high quality aqueous urea solution conforming to ISO 22241 specifications. Diesel Exhaust Fluid (DEF) is used as a consumable in vehicles fitted with selective catalytic reduction (SCR) after-treatment device, in order to lower NOx concentration in the exhaust emissions from diesel engines. 


Castrol DEF is essential for the correct operation of SCR after-treatment device used in diesel engines, to meet BS IV and BS VI norms.