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Castrol - Radicool SF, Coolant/Antifreze - 20 Litre
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Technical Specification
PRODUCT NUMBER 550063141PRD00003419PRD00003420602575654PRD00004547
Type Superior long life antifreezeSuperior long life antifreezeAntifreeze Concentrate
Density, 15°C 1.0691.1161.116
Equilibrium Boiling Point 180180
Freezing point (50 vol %) -38-38-37
Colour PinkOrange-redOrange-redPurple
Volume 202020820
Oil Type Organic Additive Technology Pre-diluted Coolant/ AntifreezeOrganic Additive Technology Coolant
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Q 1. Is Castrol Radicool SF a concentrate or ready-to-use?

A. Castrol Radicool SF is a concentrate and must be diluted with purified water before use.

Q 2. What mix ratio with water is recommended for Castrol Radicool SF?

A. Castrol Radicool SF should be used at concentrations between 33% and 50% dilution with purified water, which provides optimum corrosion protection and freezing protection between -18°C and -36°C.

Q 3. What is the freeze protection of Castrol Radicool SF at 50% dilution?

A. At 50% dilution with purified water, Castrol Radicool SF provides freeze protection down to -37°C.

Q 4. What technology is Castrol Radicool SF based on?

A. Castrol Radicool SF is based on Organic Acid Inhibitor Technology (OAT) using monoethylene glycol. The formulation is nitrite, amine, phosphate and silicate-free.

Q 5. What industry standards does Castrol Radicool SF meet?

A. Castrol Radicool SF meets the following industry standards: ASTM D3306 (I), ASTM D4985 and ASTM D6210; BS 6580:2010; and JASO JIS K2234.

Q 6. What is an OEM Specification?

A. An OEM Specification is the coolant requirement set by a vehicle or equipment manufacturer (e.g., MB 325.3, VW TL 774-D / G12+). When a coolant lists the code, the coolant manufacturer has developed and tested it to meet the criteria the equipment manufacturer requires. Match the code in your handbook and you have a coolant engineered for your machine.

Q 7. What is an OEM Approval?

A. An OEM Approval means the coolant has been formally tested and signed off by the equipment manufacturer and listed on their official approved-products register (e.g., MB-Approval 325.3). An Approval confirms the coolant is recognised by the equipment manufacturer for service use in their machines.

Q 8. What OEM approvals does Castrol Radicool SF carry?

A. Castrol Radicool SF carries the following OEM approvals: Deutz DQC CB-14; Ford WSS-M97B44-D; MAN 324 Typ SNF; MB-Approval 325.3; and VW TL-774F (G12+).

Q 9. Is Castrol Radicool SF approved to VW TL-774F (G12+)?

A. Yes, Castrol Radicool SF holds VW TL-774F approval, which is also known as VW G12+ specification.

Q 10. Is Castrol Radicool SF approved to Mercedes-Benz MB-Approval 325.3?

A. Yes, Castrol Radicool SF carries Mercedes-Benz MB-Approval 325.3.

Q 11. What engine materials is Castrol Radicool SF suitable for?

A. Castrol Radicool SF is suitable for engines employing cast iron, aluminium and copper or combinations of these metals used in modern engine designs. It is also compatible with standard rubber hoses, gaskets and seals.

Q 12. What is a BS 6580 / ASTM D3306 classification?

A. BS 6580 (UK) and ASTM D3306 (US) are the universal coolant performance standards every reputable coolant meets. They are your baseline check — match the standard your handbook specifies and the coolant is technically suitable for your system. Every coolant on our site lists its BS 6580 and ASTM D3306 classifications.

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