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Castrol

Radicool SI-OAT 20L - Castrol

SKU: 3437791
Sale price $264.99 Regular price $278.99
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Radicool SI-OAT 20L

Castrol Radicool SI-OAT is an engine coolant, supplied as one 20L pack. This concentrate is diluted before use to achieve the required cooling-system protection. This silicate-enhanced organic-acid concentrate targets cooling systems that call for Si-OAT technology and the listed European manufacturer approvals.

Key benefits

  • Helps protect against corrosion and deposit formation.
  • Suitable for specified Euro 6 truck and bus cooling systems.
  • Helps protect compatible cooling-system metals from corrosion.

Applications and compatibility

For compatible passenger and commercial vehicles requiring the stated Si-OAT specifications.

Check coolant compatibility before filling or topping up. Follow the concentrate or premix instructions below and the vehicle manufacturer’s service procedure.

Application note: Match the required coolant technology and specification; coolant colour alone does not establish compatibility.

Specifications and performance claims

  • ASTM D3306 (I) (Concentrate)
  • ASTM D4985
  • BS6580:2010
  • JASO JIS K2234
  • MAN 324 Type Si-OAT
  • VW TL- 774G (G12++)
  • DTFR 29C120 (Concentrate)
  • MB-Approval 325.6 (Concentrate)

Product details

Brand Castrol
Part number / MPN 3437791
Pack size 20L
Quantity supplied 1
Product function Engine coolant
Supply form Concentrate

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