Castrol Magnatec 5W-40 Engine Oil 20L - 3437395
Castrol Magnatec 5W-40 Engine Oil 20L Castrol MAGNATEC engine oils are specifically engineered for today&rsquo,s urban driving environment and designed to protect engines against the wear caused by re-starting in busy traffic. Castrol MAGNATEC clings like a magnet and locks to protect vulnerable metal surfaces and moving parts in your engine during warm-up, delivering superior protection from engine wear1. Castrol MAGNATEC. Non-stop protection from every start. 1 Tested versus the Sequence IVA API SN wear limit. When choosing oil, please refer to your owner's handbook. The product specifications required may also be suitable for other vehicles Browse online using our handy Rego Search tool to find the best Castrol oils for your application or come in store today and speak to one of our friendly staff. Changing your oil will also need you changing your oil filter to fully protect your engine and maximise the performance of your Castrol oil. When it comes to Oils and Fluids, the range doesn't just stop at Magnatec, GTX or Edge, Repco stock a range of quality Castrol Grease, Transmission Fluid, Gear Oil, Lawnmower and Motorbike Oil, Marine Oil and Additives all designed to protect and maximise the performance of any application.
Castrol Magnatec 5W-40 Engine Oil 20L Castrol MAGNATEC engine oils are specifically engineered for today&rsquo,s urban driving environment and designed to protect engines against the wear caused by re-starting in busy traffic. Castrol MAGNATEC clings like a magnet and locks to protect vulnerable metal surfaces and moving parts in your engine during warm-up, delivering superior protection from engine wear1. Castrol MAGNATEC. Non-stop protection from every start. 1 Tested versus the Sequence IVA API SN wear limit. When choosing oil, please refer to your owner's handbook. The product specifications required may also be suitable for other vehicles Browse online using our handy Rego Search tool to find the best Castrol oils for your application or come in store today and speak to one of our friendly staff. Changing your oil will also need you changing your oil filter to fully protect your engine and maximise the performance of your Castrol oil. When it comes to Oils and Fluids, the range doesn't just stop at Magnatec, GTX or Edge, Repco stock a range of quality Castrol Grease, Transmission Fluid, Gear Oil, Lawnmower and Motorbike Oil, Marine Oil and Additives all designed to protect and maximise the performance of any application.
Castrol Magnatec 5W-40 Engine Oil 20L Castrol MAGNATEC engine oils are specifically engineered for today&rsquo,s urban driving environment and designed to protect engines against the wear caused by re-starting in busy traffic. Castrol MAGNATEC clings like a magnet and locks to protect vulnerable metal surfaces and moving parts in your engine during warm-up, delivering superior protection from engine wear1. Castrol MAGNATEC. Non-stop protection from every start. 1 Tested versus the Sequence IVA API SN wear limit. When choosing oil, please refer to your owner's handbook. The product specifications required may also be suitable for other vehicles Browse online using our handy Rego Search tool to find the best Castrol oils for your application or come in store today and speak to one of our friendly staff. Changing your oil will also need you changing your oil filter to fully protect your engine and maximise the performance of your Castrol oil. When it comes to Oils and Fluids, the range doesn't just stop at Magnatec, GTX or Edge, Repco stock a range of quality Castrol Grease, Transmission Fluid, Gear Oil, Lawnmower and Motorbike Oil, Marine Oil and Additives all designed to protect and maximise the performance of any application.
Castrol Magnatec 5W-40 Engine Oil 20L Castrol MAGNATEC engine oils are specifically engineered for today&rsquo,s urban driving environment and designed to protect engines against the wear caused by re-starting in busy traffic. Castrol MAGNATEC clings like a magnet and locks to protect vulnerable metal surfaces and moving parts in your engine during warm-up, delivering superior protection from engine wear1. Castrol MAGNATEC. Non-stop protection from every start. 1 Tested versus the Sequence IVA API SN wear limit. When choosing oil, please refer to your owner's handbook. The product specifications required may also be suitable for other vehicles Browse online using our handy Rego Search tool to find the best Castrol oils for your application or come in store today and speak to one of our friendly staff. Changing your oil will also need you changing your oil filter to fully protect your engine and maximise the performance of your Castrol oil. When it comes to Oils and Fluids, the range doesn't just stop at Magnatec, GTX or Edge, Repco stock a range of quality Castrol Grease, Transmission Fluid, Gear Oil, Lawnmower and Motorbike Oil, Marine Oil and Additives all designed to protect and maximise the performance of any application.
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The lowest price for Castrol Magnatec 5W-40 Engine Oil 20L - 3437395 right now is $50.99 at Amazon.com.au, compared across 7 retailers.
The all-time low was $50.99 on 2 Sept 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 2 Sept 2026.
Last updated at 02/09/2026 08:14:24
Castrol Magnatec 5W-40 Engine Oil 5 Litre
Free delivery
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Castrol Magnatec 5W-40 Engine Oil 5L - 3428779
Castrol Magnatec 5W-40 Engine Oil 5L - 3428779
Delivery $12
Castrol MAGNATEC Engine Oil, 5W-40, 5 Litres
Delivery between 7–10 Sept $9.99
Castrol Magnatec 5W-40 Full Synthetic Engine Oil 5L, 3428779
Castrol Magnatec 5w40 Engine Oil 20L - 3437395
Delivery between 3–10 Sept $22
Castrol Magnatec 5W-40 Engine Oil 20L 3437395 fits Great Wall X240 2.0 X200 GW4D20 AWD Diesel SUV 06/11-12/14 105kw
Delivery between 3–15 Sept $10.95
| ACEA specification | A3/B4 |
| SAE viscosity class | 5W-40 |
| viscosity class | 5W-40 |
| Warranty | Limited |
Castrol Magnatec 5W-40 Engine Oil 5 Litre
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Castrol Magnatec 5W-40 Engine Oil 5L - 3428779
Castrol Magnatec 5W-40 Engine Oil 5L - 3428779
Delivery $12
Castrol MAGNATEC Engine Oil, 5W-40, 5 Litres
Delivery between 7–10 Sept $9.99
Castrol Magnatec 5W-40 Full Synthetic Engine Oil 5L, 3428779
| ACEA specification | A3/B4 |
| SAE viscosity class | 5W-40 |
| viscosity class | 5W-40 |
| Warranty | Limited |