Castrol 5W-40 engine oils
Castrol 5W-40 engine oils
in 11 offers
The lowest price for Castrol MAGNATEC Diesel DX 5W40 Engine Oil 5L - 3383629 right now is $61.20 at A1 Autoparts Niddrie, compared across 9 retailers.
The all-time low was $44.99 on 19 Nov 2025 — today's price is 36% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 18 Aug 2026.
Castrol MAGNATEC Diesel DX 5W40 Engine Oil 5L - 3383629
Castrol 5W-40 engine oils
Castrol 5W-40 engine oils
Last updated at 18/08/2026 21:37:19
Castrol Magnatec DX 5W-40 Diesel Engine Oil 5 Litre
Free delivery
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Castrol Magnatec Diesel DX 5W40 Engine Oil - 5 Litre
Delivery between 21–31 Aug $18.05
Castrol Magnatec Diesel DX 5W40 Engine Oil - 5 Litre (3383629)
Castrol Magnatec Diesel DX 5W40 Engine Oil 5L - 3383629
Delivery $9
Castrol Magnatec 5w-40 Diesel Dx Full Synthetic Engine Oil 5l 3383629
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 5W40 Diesel DX Engine Oil 5L 3383629
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 Diesel Dx Full Synthetic Engine Oil 5l 3383629
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 Diesel DX Full Synthetic Engine Oil 5L 3383629 fits KIA CEE'D 1.6 CRDi 128, 1.6 CRDi 90, 1.6 CRDi 115
Delivery between 24 Aug – 1 Sept $9.90
Castrol Magnatec Diesel Dx 5W-40 Full Synthetic Engine Oil 5L, 3383629
Delivery between 24–27 Aug $15
Castrol Magnatec Diesel Dx 5W-40 Full Synthetic Engine Oil 5L, 3383629
originally posted on supercheapauto.com.au
I have used mostly Castrol for over 40 years and have always liked their products. The engine was immediately quieter, although it was replacing Castrol.
originally posted on supercheapauto.com.au
Always use Magnatec, It is Dexos 2 specs. and top quality
originally posted on supercheapauto.com.au
Was great to find what I needed online. This one was recommended for my vehicle. Has done a great job so far, cannot fault it.
| Oil Composition | Full Synthetic |
| SAE | 5W-40 |
| ACEA | ACEA C3 |
| API | SN/CF |
| General Motors | GM dexos2 |
Castrol Magnatec DX 5W-40 Diesel 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 Diesel DX 5W40 Engine Oil - 5 Litre
Delivery between 21–31 Aug $18.05
Castrol Magnatec Diesel DX 5W40 Engine Oil - 5 Litre (3383629)
Castrol Magnatec Diesel DX 5W40 Engine Oil 5L - 3383629
Delivery $9
Castrol Magnatec 5w-40 Diesel Dx Full Synthetic Engine Oil 5l 3383629
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!
I have used mostly Castrol for over 40 years and have always liked their products. The engine was immediately quieter, although it was replacing Castrol.
Always use Magnatec, It is Dexos 2 specs. and top quality
Was great to find what I needed online. This one was recommended for my vehicle. Has done a great job so far, cannot fault it.
Good engine oil, always use this brand ever since.
As always the benchmark of oil. Always reliable, even when I do large 3000km trips regionally. Great stuff.
I was looking for a good oil to use for our Transit Camper Van, before undertaking a trip around Australia in September this year. The specs of the oil ticked all the boxes recommended by the manufacture , plus some. Completed 19500 kms trip without a hitch in 63 days. Covered a lot of hostile country with temperature extremes. Happy with this product, changed filter and oil, ready to go again.s
Always my go to. Good for 10,000km every time. I suggest trying this because it goes the distance.
In cold weather (which we had in Summer as well) heavy weight oils 20w-50, 15w-40 are hard to reach the lifters hence resulting in tapping noise, harming the engine components.Put this as a top up or 1/4 mix with thick engine oil at oil change the noisy lifters become quiteEspecially for older cars.
Great product! Best oil going for my Ford mondeo diesel! Will always buy this oil couldn't couldn't happier
Going to 40W makes it good for motors needing fully synthetic oil thats a little thicker when hot . As in hot weather . Long trips and fully run in motors .
| Oil Composition | Full Synthetic |
| SAE | 5W-40 |
| ACEA | ACEA C3 |
| API | SN/CF |
| General Motors | GM dexos2 |
