Easy to contact. Easy to purchase. Pick up or delivery available. We chose pick up as wanted the item quickly. Staff at shop when picking up were very friendly and helpful. Item is fantastic ( broke discs). Thank you. Will shop again if looking for car parts.
Radicool Premix 1L - Castrol
Get it delivered
Australia-wide delivery
Australia-wide delivery
Get your parts delivered across Australia, with delivery options and costs shown at checkout before you pay. Have a delivery question before ordering? Contact our parts team for help planning your purchase.
Download your tax invoice
Download your tax invoice
Buying for your workshop, business or personal vehicle? Download your tax invoice after purchase for your records. Keep your purchase details handy for bookkeeping, warranty enquiries or future reference.
Returns & warranty
Returns & warranty
Buy with confidence knowing help is available after your purchase. Eligible items can be returned within 30 days of purchase, and our parts team can guide you through return or warranty enquiries.
Radicool Premix 1L
Castrol Radicool Premix is an engine coolant, supplied as one 1L pack. This premixed coolant is supplied ready for use at its stated concentration. A ready-mixed ethylene glycol coolant for suitable older petrol and diesel cars and light commercial vehicles.
Key benefits
- Freezing protection down to-19°C.
- Helps protect mixed-metal cooling systems from corrosion.
- Helps protect compatible cooling-system metals from corrosion.
- Helps limit cavitation-related damage in suitable cooling systems.
Applications and compatibility
For compatible pre-2000 applications requiring the stated coolant performance.
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
- BS 6580:2010
Product details
| Brand | Castrol |
|---|---|
| Part number / MPN | 3424638 |
| Pack size | 1L |
| Quantity supplied | 1 |
| Product function | Engine coolant |
| Supply form | Premix |
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.


