Castrol is here to serve every driver, every motorcyclist and every industry on Earth. That means creating high performance oils, lubricants, fluids and greases for every application you can imagine.
Castrol is here to serve every driver, every motorcyclist and every industry on Earth. That means creating high performance oils, lubricants, fluids and greases for every application you can imagine.
Castrol Magnatec DX 5W-40 Diesel Engine Oil 20 L
Castrol is here to serve every driver, every motorcyclist and every industry on Earth. That means creating high performance oils, lubricants, fluids and greases for every application you can imagine.
Castrol is here to serve every driver, every motorcyclist and every industry on Earth. That means creating high performance oils, lubricants, fluids and greases for every application you can imagine.
in 10 offers
The lowest price for Castrol Magnatec DX 5W-40 Diesel Engine Oil 20 L right now is $159.59 at ozlubes.com, compared across 10 retailers.
The all-time low was $77.56 on 6 Oct 2026 — today's price is 106% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 4 Nov 2026.
Last updated at 04/11/2026 23:43:49
Castrol MAGNATEC Diesel DX 20L
Delivery between 11–13 Nov $5
MAGNATEC DIESEL DX 5W40 20L
Delivery between 10–18 Nov $25
Castrol Magnatec Diesel DX 5W40 CASTROL MAGNATEC DIESEL DX 5W40 20L
Delivery between 10–18 Nov $35
Castrol MAGNATEC 5W-40 Diesel DX Engine Oil 20L - 3384168
Free delivery
Castrol Magnatec Diesel DX 5W-40 Engine Oil 20L - 3384168
Delivery $12
Castrol 5W-40 Dx Magnatec Diesel Engine Oil 20 Litre
Delivery between 12–14 Nov $8.80
Castrol 5W-40 Dx Magnatec Diesel Engine Oil 20 Litre 3384168
Delivery $20
MAGNATEC Diesel DX 5W-40 20L - Castrol
Delivery between 6–14 Nov $16.38
CASTROL MAGNATEC DIESEL DX 5W-40 ENGINE OIL 20L
Delivery between 13–18 Nov $25
Castrol 5W-40 Dx Magnatec Diesel Engine Oil 20 Litre (3384168) | 5W-40
Free delivery
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originally posted on repco.com.au
Have used this product repeatedly and find it is value for money when bought on sale. Happy to buy large quantity to save even more. As my wife's vehicle has a 7 liter sump capacity I nearly get 3 oil changes form this product.
originally posted on repco.com.au
That's what I need for diesel oil 20 litres than 5 litres
| Form Configuration | Oil, Liquid |
| Form | Liquid |
| Viscosity | 5W-40 |
| Operating Temperature | Extreme cold start-up conditions |
| Intended Use | Automotive, Lubrication |
Castrol MAGNATEC Diesel DX 20L
Delivery between 11–13 Nov $5
MAGNATEC DIESEL DX 5W40 20L
Delivery between 10–18 Nov $25
Castrol Magnatec Diesel DX 5W40 CASTROL MAGNATEC DIESEL DX 5W40 20L
Delivery between 10–18 Nov $35
Castrol MAGNATEC 5W-40 Diesel DX Engine Oil 20L - 3384168
Free delivery
Castrol Magnatec Diesel DX 5W-40 Engine Oil 20L - 3384168
Delivery $12
Have used this product repeatedly and find it is value for money when bought on sale. Happy to buy large quantity to save even more. As my wife's vehicle has a 7 liter sump capacity I nearly get 3 oil changes form this product.
That's what I need for diesel oil 20 litres than 5 litres
| Form Configuration | Oil, Liquid |
| Form | Liquid |
| Viscosity | 5W-40 |
| Operating Temperature | Extreme cold start-up conditions |
| Intended Use | Automotive, Lubrication |
