Opticool Antifreeze HD (Green)
Monoethylene glycol based antifreeze concentrate
Product code: D027
Opticool Antifreeze HD (Green) is a monoethylene glycol based engine coolant concentrate formulated for optimum
performance in heavy duty diesel engine applications but equally suitable for light duty use. It employs established
inhibitor technology and is phosphate and amine free. BTC Classification Type 3EN.
The inhibitors in Opticool Antifreeze HD (Green) include organic acids in combination with borate, silicate and nitrite
which are well known for their ability to provide excellent protection in heavy duty applications particularly where
there is potential for cavitation erosion-corrosion to occur.
Opticool Antifreeze HD (Green) uses sophisticated silicate stabilisation technology to eliminate the potential for
formation of silicate gel often observed with inferior products whilst other additives ensure good compatibility with
hard water and prevent the formation of scale that can result from use of hard water.
Opticool Antifreeze HD (Green) is formulated primarily for use in heavy duty diesel engine applications but is equally
suitable for light duty use.
Concentration (by volume) 25% 33% 40% 50% 60%
Specific Gravity @ 20°C 1.030 1.045 1.060 1.074 1.087
Freeze Protection (°C)* – 12 – 22 – 27 – 40 – 56
*Average of freezing point and pour point.
Opticool Antifreeze HD (Green) exceeds the requirements of the following European & International Standards:
ASTM D3306 ASTM D4985 ASTM D6210 SAE J1034
BS 6580 (2010) AFNOR NF R15-601 JIS K2234
Opticool Antifreeze HD (Green) meets the requirements of the following vehicle/engine manufacturers’ OEM
MAN 324 Cummins CES14603 Leyland Fiat / Iveco
BR 637 Perkins John Deere
Opticool Antifreeze HD can be used where Glysantin® G05 was originally recommended.