Stores (3) 
Promotion 
$3.00
$2.69
Castrol specials
There are 20 Castrol offers valid this week. Use the filters to find the offers from your favourite store or product. You can save the search to be notified when Castrol is on offer again at a store near you.
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30% OFF
Castrol Magnatec
30% OFF
Castrol AdBlue
$153.00
$107.00
30% OFF
Castrol Magnatec
$92.99
$64.99
30% OFF
Castrol EDGE 5W-40
$69.99
Castrol RX Super Diesel
$259.99
$199.99
30% OFF
Castrol Magnatec 5W-30
$69.99
30% OFF
Castrol Diesel Engine Flush
$24.00
$16.00
30% OFF
Castrol Petrol Engine Flush
Castrol Magnatec Engine Oil
$80.99
$56.69
30% OFF
Castrol GTX 20W-50
$48.99
25% OFF
Castrol Edge 0W-20 C5
$105.33
$79.00
35% OFF
Castrol Edge 5W-30 LL
$110.00
$69.00
Castrol Premium Heavy Duty Grease
$46.00
$23.00
25% OFF
Castrol Selected Edge Engine Oils
50% OFF
Castrol EDGE 5W-30 A3/B4
$74.00
$37.00
30% OFF
Castrol Magnatec SUV 5W-30 C3
40% OFF
Castrol Edge Extended Performance Engine Oils
40% OFF
Castrol Magnatec 10W-40 5L Engine Oil
$76.99
$46.19
40% OFF
Castrol RX Super Heavy Duty 15W-40 Diesel
$235.00
$139.00
30% OFF
Castrol Edge LL 5W-30 or IV 0W-20 5L Engine Oils
Stores with Castrol in their assortment
Top 10 best Castrol offers
Looking for the best Castrol offers? We have collected the top 10 offers for you! See here where to get Castrol at the best price and take advantage of sharp discounts and promotions right away.
| # | Offer | Name | Store | Regular price | Offer price | Promotion | Start date | End date | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | | Castrol Magnatec 10 L | Repco | 30% OFF | 14 October 2026 | 27 October 2026 | View offer | ||
| 2 | | Castrol AdBlue 20 L | Repco | $153.00 | $107.00 | 30% OFF | 14 October 2026 | 27 October 2026 | View offer |
| 3 | | Castrol Magnatec | SuperCheap Auto | $92.99 | $64.99 | 30% OFF | 21 October 2026 | 08 November 2026 | View offer |
| 4 | | Castrol EDGE 5W-40 5 l | Autobarn | $69.99 | 30% OFF | 14 October 2026 | 27 October 2026 | View offer | |
| 5 | | Castrol RX Super Diesel 20 L | Autobarn | $259.99 | $199.99 | $60.00 Discount | 14 October 2026 | 27 October 2026 | View offer |
| 6 | | Castrol Magnatec 5W-30 5 l | Autobarn | $69.99 | 30% OFF | 14 October 2026 | 27 October 2026 | View offer | |
| 7 | | Castrol Diesel Engine Flush 300 ml | Repco | $24.00 | $16.00 | 30% OFF | 14 October 2026 | 27 October 2026 | View offer |
| 8 | | Castrol Petrol Engine Flush 300 ml | Repco | 30% OFF | 14 October 2026 | 27 October 2026 | View offer | ||
| 9 | | Castrol Magnatec Engine Oil 5 l | SuperCheap Auto | $80.99 | $56.69 | $24.30 Discount | 21 October 2026 | 08 November 2026 | View offer |
| 10 | | Castrol GTX 20W-50 5 l | Autobarn | $48.99 | 30% OFF | 14 October 2026 | 27 October 2026 | View offer |
Castrol price history 🕒
| Offer | Name | Store | Regular price | Offer price | Promotion | Start date | End date |
|---|---|---|---|---|---|---|---|
 | Castrol Magnatec 5W-30 5 l | Repco | $95.00 | $47.00 | $48.00 Discount | 30 September 2026 | 09 October 2026 |
 | Castrol Edge 10W-60 5 l | Repco | $125.00 | $87.00 | 30% OFF | 30 September 2026 | 09 October 2026 |
 | Castrol Premium Diesel 15W-40 1 l | Repco | $20.00 | 30 September 2026 | 09 October 2026 | ||
 | Castrol Power1 4T 10W-40 4 L | Repco | $111.00 | $75.00 | 30% OFF | 09 September 2026 | 22 September 2026 |
 | Castrol Magnatec 5W-40 5 l | Repco | $87.00 | $67.00 | $20.00 Discount | 09 September 2026 | 22 September 2026 |
 | Castrol GTX 10W-30 5 l | Repco | $63.00 | $45.00 | 25% OFF | 09 September 2026 | 22 September 2026 |
 | Castrol Magnatec SUV 5W-30 C3 10L | Autobarn | $174.99 | $119.99 | $55.00 Discount | 09 September 2026 | 29 September 2026 |
 | Castrol Edge 1L Top Up Engine Oil 1 l | SuperCheap Auto | $12.99 | 08 September 2026 | 27 September 2026 | ||
 | Castrol EDGE 5L Engine Oils 5 l | SuperCheap Auto | 30% OFF | 08 September 2026 | 27 September 2026 | ||
 | Castrol GTX Ultra Clean Engine Oil - 10W-30, 5 Litre | SuperCheap Auto | $62.99 | $43.99 | $19.00 Discount | 20 February 2025 | 27 February 2025 |
 | Castrol EDGE Engine Oil - 0W-40, A3/B4, 5 Litre | SuperCheap Auto | $109.99 | $82.49 | $27.50 Discount | 20 February 2025 | 27 February 2025 |
 | Castrol EDGE Engine Oil - 5W-30, LL 5 Litre | SuperCheap Auto | $103.99 | $72.79 | $31.20 Discount | 20 February 2025 | 27 February 2025 |
 | Castrol EDGE Engine Oil - 5W-30, A3/B4, 5 Litre | SuperCheap Auto | $90.99 | $63.69 | $27.30 Discount | 20 February 2025 | 27 February 2025 |
 | Castrol MAGNATEC Engine Oil -10W-40, 5 Litre | SuperCheap Auto | $64.99 | $45.49 | $19.50 Discount | 25 July 2024 | 01 August 2024 |
 | Castrol MAGNATEC Engine Oil 5W-30 5 Litre | SuperCheap Auto | $74.99 | $52.49 | $22.50 Discount | 04 July 2024 | 11 July 2024 |
 | Castrol Edge Engine Oil - 5W-40, 5 Litre | SuperCheap Auto | $85.99 | $60.19 | $25.80 Discount | 04 July 2024 | 11 July 2024 |
 | Castrol GTX ULTRACLEAN Engine Oil 15W-40 5 Litre | SuperCheap Auto | $57.99 | $28.99 | $29.00 Discount | 20 June 2024 | 27 June 2024 |