Castrol Radicool Si-OAT

Castrol Radicool Si-OAT is a nitrite, amine and phosphate free antifreeze coolant with added silicate for the latest vehicles requiring silicate containing OAT technology. Aqueous solutions of Castrol Radicool Si-OAT act as both antifreeze and coolant and offer excellent corrosion protection to all metal parts found in the cooling systems of internal combustion engines.
Castrol Radicool Si-OAT should be used at concentrations of between 33% and 50% dilution with purified water to give optimum corrosion protection and freezing protection between -18°C and -36°C.

• Castrol Radicool Si-OAT has been developed to provide total protection for the metals used in the engine radiator systems, cylinder block heads, water pumps and heat exchangers.
• In the majority of cases, coolants are not compatible and should not be mixed with other coolants unless directed by the equipment manufacturer.
• If using Castrol Radicool Si-OAT for the first time, ensure that the cooling system has been adequately flushed with clean water.
• Castrol Radicool Si-OAT is formally approved by MAN for use in those vehicles specifying MAN 324 Type Si -OAT coolants, including those vehicles built after Dec 2012.
• Castrol Radicool Si-OAT is also suitable for use in older vehicles previously using MAN 324 Type NF and MAN 324 Type SNF fluids.
• Castrol Radicool Si-OAT is approved for use in VW vehicles requiring VW TL-774G approval . It is also compatible with older VW TL774C (G11) and VW TL 774F (G12+) type fluids and can be used where VW TL 774J (G13) fluid is recommended.
• Castrol Radicool Si-OAT is suitable for use in Mercedes Benz heavy duty vehicles manufactured after Oct 2011.

• Castrol Radicool Si-OAT provides long-lasting protection
• Excellent low temperature protection
• Provides superior protection against all forms of corrosion
• Eliminates deposit formation , because of its phosphate free formulation
• Approved for use in Euro 6 trucks

• ASTM D3306 (I)
• ASTM D4985
• BS6580:2010
• JASO JIS K2234
• MAN 324 Type Si-OAT
• MB-Approval 325.5
• VW TL- 774G