ULTRA LONGLIFE HDNF 48 (BLUE/GREEN)

Product code: EXPU911S1L

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Ultra Longlife HDNF 48 (Blue/Green) Antifreeze 1L (U911) – Heavy Duty Hybrid Protection

Part Number: EXPU911S1L

Monoethylene glycol–based coolant concentrate engineered for heavy-duty diesel engines and equally suitable for light-duty use. Uses a hybrid inhibitor package of organic acids with borate & silicate (BTC Type 3E), and is NAP-free (no nitrites, amines, phosphates). Superior silicate stabilisation prevents gel formation, while hard-water-compatible additives help stop scale, delivering excellent corrosion protection across aluminium and ferrous components. Suitable where Glysantin® G48 is specified.

Key Features

• Hybrid inhibitor technology: organic acids + borate/silicate (NAP-free)
• Silicate stabilisation — resists gel formation
• Hard-water compatibility helps prevent scale
• Excellent protection for aluminium and ferrous systems
• Heavy-duty rated; suitable for light-duty petrol/diesel too
• Use where G48 was originally recommended

Applications

• Heavy-duty diesel engines; vans, cars, and mixed-metal systems
• Service top-ups and smaller systems (dilute per guide)

Directions / Mixing

1. For top-ups, check when cold. For full fills, drain & flush first.
2. Dilute with clean water to target freeze protection (see table).
3. Fill, bleed air, heat-cycle, cool and recheck level.

Product Specifications

• ASTM D3306, ASTM D4985, SAE J1034, BS 6580:2010
• AFNOR NF R15-601, JIS K2234
• Meets performance requirements of ASTM D6210
• BTC Classification: Type 3E

Product Characteristics

• Type: Hybrid HOAT (Blue/Green), NAP-free
• Base: Monoethylene glycol (MEG)
• Pack Size: 1 L

Freeze Protection Guide

Concentration (v/v)	Protection (°C)*
25%	−12
33%	−22
40%	−27
50%	−40
60%	−56

*Average of freezing and pour points.

Also Available

▶ Red Antifreeze

• Red Antifreeze 20L (EXPU906D20L)
• Longlife Red Antifreeze 1L (EXPU906S1L)
• Longlife Red Antifreeze 5L (EXPU906S5L)

▶ Blue Antifreeze

• Standard Blue Antifreeze 20L (EXPU905D20L)
• Standard Blue Antifreeze 1L (EXPU905S1L)
• Standard Blue Antifreeze 5L (EXPU905S5L)

▶ Green (Blue/Green) Antifreeze

• Ultra Longlife HDNF 48 (Blue/Green) 1L (EXPU911S1L)
• Ultra Longlife HDNF 48 (Blue/Green) 5L (EXPU911S5L)

▶ Other Coolants

• Ultra Longlife Lilac 40 5L (EXPU912S5L)
• Longlife Universal 1L (EXPU913S1L)
• Longlife Universal 5L (EXPU913S5L)

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