Castrol Edge 5W-30 A3/B4 Engine Oil
Experience peak engine performance and unmatched protection with Castrol EDGE Engine Oil: 5W-30, A3/B4, 5 Litre. Specially formulated using Castrols advanced Fluid TITANIUM technology, this premium engine oil is engineered to perform under extreme pressure perfect for modern engines that demand more from the lubricant. The titanium molecules adapt under stress, reducing friction and delivering the strength your engine needs to operate at its best. This Castrol EDGE engine oil 5W-30 A3 B4 5 litre pack is ideal for drivers of high-performance European vehicles requiring ACEA A3/B4 specification oil. Whether you're navigating through busy city streets or heading out on long-distance drives across the outback, you can count on Castrol EDGE to provide superior engine cleanliness, wear protection, and outstanding thermal stability. It keeps your engine running smoother and more efficiently even under harsh conditions. Designed to meet the needs of both petrol and light diesel engines (excluding DPF-equipped models), Castrol EDGE engine oil: 5W-30 delivers enhanced fuel economy and longer oil drain intervals, helping you save on maintenance costs without compromising performance. The 5-litre size is convenient for standard oil changes, making it a favourite among both DIY car enthusiasts and professional mechanics. Choose Castrol EDGE 5W-30 A3/B4 for your next engine oil change and enjoy the confidence of driving with one of the strongest and most trusted engine oils available. With proven results in both lab and real-world testing, it's the engine oil you can rely on to maximise engine performance, extend engine life, and support a cleaner, more efficient drive every time.
Experience peak engine performance and unmatched protection with Castrol EDGE Engine Oil: 5W-30, A3/B4, 5 Litre. Specially formulated using Castrols advanced Fluid TITANIUM technology, this premium engine oil is engineered to perform under extreme pressure perfect for modern engines that demand more from the lubricant. The titanium molecules adapt under stress, reducing friction and delivering the strength your engine needs to operate at its best. This Castrol EDGE engine oil 5W-30 A3 B4 5 litre pack is ideal for drivers of high-performance European vehicles requiring ACEA A3/B4 specification oil. Whether you're navigating through busy city streets or heading out on long-distance drives across the outback, you can count on Castrol EDGE to provide superior engine cleanliness, wear protection, and outstanding thermal stability. It keeps your engine running smoother and more efficiently even under harsh conditions. Designed to meet the needs of both petrol and light diesel engines (excluding DPF-equipped models), Castrol EDGE engine oil: 5W-30 delivers enhanced fuel economy and longer oil drain intervals, helping you save on maintenance costs without compromising performance. The 5-litre size is convenient for standard oil changes, making it a favourite among both DIY car enthusiasts and professional mechanics. Choose Castrol EDGE 5W-30 A3/B4 for your next engine oil change and enjoy the confidence of driving with one of the strongest and most trusted engine oils available. With proven results in both lab and real-world testing, it's the engine oil you can rely on to maximise engine performance, extend engine life, and support a cleaner, more efficient drive every time.
Experience peak engine performance and unmatched protection with Castrol EDGE Engine Oil: 5W-30, A3/B4, 5 Litre. Specially formulated using Castrols advanced Fluid TITANIUM technology, this premium engine oil is engineered to perform under extreme pressure perfect for modern engines that demand more from the lubricant. The titanium molecules adapt under stress, reducing friction and delivering the strength your engine needs to operate at its best. This Castrol EDGE engine oil 5W-30 A3 B4 5 litre pack is ideal for drivers of high-performance European vehicles requiring ACEA A3/B4 specification oil. Whether you're navigating through busy city streets or heading out on long-distance drives across the outback, you can count on Castrol EDGE to provide superior engine cleanliness, wear protection, and outstanding thermal stability. It keeps your engine running smoother and more efficiently even under harsh conditions. Designed to meet the needs of both petrol and light diesel engines (excluding DPF-equipped models), Castrol EDGE engine oil: 5W-30 delivers enhanced fuel economy and longer oil drain intervals, helping you save on maintenance costs without compromising performance. The 5-litre size is convenient for standard oil changes, making it a favourite among both DIY car enthusiasts and professional mechanics. Choose Castrol EDGE 5W-30 A3/B4 for your next engine oil change and enjoy the confidence of driving with one of the strongest and most trusted engine oils available. With proven results in both lab and real-world testing, it's the engine oil you can rely on to maximise engine performance, extend engine life, and support a cleaner, more efficient drive every time.
Experience peak engine performance and unmatched protection with Castrol EDGE Engine Oil: 5W-30, A3/B4, 5 Litre. Specially formulated using Castrols advanced Fluid TITANIUM technology, this premium engine oil is engineered to perform under extreme pressure perfect for modern engines that demand more from the lubricant. The titanium molecules adapt under stress, reducing friction and delivering the strength your engine needs to operate at its best. This Castrol EDGE engine oil 5W-30 A3 B4 5 litre pack is ideal for drivers of high-performance European vehicles requiring ACEA A3/B4 specification oil. Whether you're navigating through busy city streets or heading out on long-distance drives across the outback, you can count on Castrol EDGE to provide superior engine cleanliness, wear protection, and outstanding thermal stability. It keeps your engine running smoother and more efficiently even under harsh conditions. Designed to meet the needs of both petrol and light diesel engines (excluding DPF-equipped models), Castrol EDGE engine oil: 5W-30 delivers enhanced fuel economy and longer oil drain intervals, helping you save on maintenance costs without compromising performance. The 5-litre size is convenient for standard oil changes, making it a favourite among both DIY car enthusiasts and professional mechanics. Choose Castrol EDGE 5W-30 A3/B4 for your next engine oil change and enjoy the confidence of driving with one of the strongest and most trusted engine oils available. With proven results in both lab and real-world testing, it's the engine oil you can rely on to maximise engine performance, extend engine life, and support a cleaner, more efficient drive every time.
in 13 offers
The lowest price for Castrol Edge 5W-30 A3/B4 Engine Oil right now is $45.88 at Amazon.com.au, compared across 13 retailers.
The all-time low was $29.00 on 1 Mar 2026 — today's price is 58% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 28 Aug 2026.
Last updated at 28/08/2026 21:52:11
Castrol Edge 5W-30 A3/B4 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 Edge 5W30 A3/B4 Engine Oil - 5 Litre (3421196)
Free delivery between 3–11 Sept
Castrol Edge FS 5W30 Engine Oil A3/B4 5L - 3421196
Delivery between 2–10 Sept $9
Castrol Edge 5w-30 A3 B4 Engine Oil 5l 3421196 Free Shipping
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!
EDGE 5W-30 A3/B4 5L - Shoalhaven Oil Supplies
Castrol Edge 5W-30 A3/B4 5L
Castrol Edge 5W30 A3/B4 Synthetic Engine Oil 5L 3421196 fits Mercedes-Benz A-Class A 200 TURBO (169.034 169.334) M 266.980 FWD Petrol Hatchback 09/05-
Delivery between 31 Aug – 10 Sept $10.95
Castrol EDGE 5W-30 A3 B4 Engine Oil 5L 3421196 fits NISSAN 370Z 3.7 V6 VVEL, NISMO 3.7, 3.7 NISMO, 3.7
Delivery between 3–11 Sept $9.90
Castrol EDGE Engine Oil - 5W-30, A3/B4, 5 Litres
Delivery between Tue – Thu $9.99
Castrol Edge 5W-30 A3/b4 Full Synthetic Engine Oil 5L, 3421196
Delivery between 4–7 Sept $15
originally posted on autobarn.com.au
I’ve been using Castrol Edge in my Astra since I can remember. I had to redo the rocker gasket at 320,000 km and this motor is so clean inside it’s ridiculous. No gunk anywhere at all . Combined with a liqui moly oil flush at every oil change and Shell V Power as my fuel choice there is nothing better in my opinion. Car runs quiet and also gets great fuel mileage with this oil.
originally posted on supercheapauto.com.au
Have used Castrol lubes for over 60 years. In that time, have had engines loose coolant, overheat, and run with coolant contaminated Castrol oil. Yet never had any measurable engine damage! Am aware that Castrol is now part of BP, but have every reason to believe quality of product continues.
originally posted on supercheapauto.com.au
I require 9 Litres for the X5 so I mix 5 litre of the 5W 40 + 4 litre of the 5W 30 for summer and reverse volumes for winter. Thoroughly recommended for any vehicle. Does what it is supposed and stays honey golden up until about 5000kms ( I change at 6000kms but if it's on one of my long travels out back happy to change if I have to at about 10000kms). This Xy E70 has done 230000kms, 500000 on the previous E53. No blue smoke, no oil consumption between oil changes except for the usual oil leaks (about 100ml between changes, weeping vale cover gasket). Cheers Gaz
| Warranty | Manufacturers warranty |
| Base Type | Fully Synthetic |
| Density at 20°C | 0.8522 g/ml |
| Flash Point | 234 °C |
| Fuel Type | Engine Oils - Premium |
Castrol Edge 5W-30 A3/B4 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 Edge 5W30 A3/B4 Engine Oil - 5 Litre (3421196)
Free delivery between 3–11 Sept
Castrol Edge FS 5W30 Engine Oil A3/B4 5L - 3421196
Delivery between 2–10 Sept $9
Castrol Edge 5w-30 A3 B4 Engine Oil 5l 3421196 Free Shipping
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!
EDGE 5W-30 A3/B4 5L - Shoalhaven Oil Supplies
I’ve been using Castrol Edge in my Astra since I can remember. I had to redo the rocker gasket at 320,000 km and this motor is so clean inside it’s ridiculous. No gunk anywhere at all . Combined with a liqui moly oil flush at every oil change and Shell V Power as my fuel choice there is nothing better in my opinion. Car runs quiet and also gets great fuel mileage with this oil.
Have used Castrol lubes for over 60 years. In that time, have had engines loose coolant, overheat, and run with coolant contaminated Castrol oil. Yet never had any measurable engine damage! Am aware that Castrol is now part of BP, but have every reason to believe quality of product continues.
I require 9 Litres for the X5 so I mix 5 litre of the 5W 40 + 4 litre of the 5W 30 for summer and reverse volumes for winter. Thoroughly recommended for any vehicle. Does what it is supposed and stays honey golden up until about 5000kms ( I change at 6000kms but if it's on one of my long travels out back happy to change if I have to at about 10000kms). This Xy E70 has done 230000kms, 500000 on the previous E53. No blue smoke, no oil consumption between oil changes except for the usual oil leaks (about 100ml between changes, weeping vale cover gasket). Cheers Gaz
Castrol make a superior product with Edge. I have used this in my R36 and Astra and the engine always feels just that little bit more free through the entire power band. Years ago I used Castrol in my VL Turbo and would never change now because of fuel economy and protection this oil provides on cold starts and under extreme pressure.Forget Penrite,Shell,Nulon,Valvoline ..I’ve been buying it for years and never looked back.
This oil is recommended by BMW for my car. I have had a few BMWs including an M3 and the Castrol oils have kept my engines, including the hi-tech VANOS variable valve timing systems run flawlessly. My 25 year old M3 engine looks like new inside. I would not change oils and risk that changing. It didn't hurt that it was a very good price at Repco. The COVID pickup at my local Repco store is very smooth too.
Castrol 5w-30 fully synthetic + titanium is a product that has proven itself in many trials. The name Castrol is very respected and trustworhty, so when Supercheap has this oil on special at such a low price, I buy at least 2 containers as I always change my oil at 6 months and at 12 months with a service, and I supply Toyota with this oil at the 12 months service. I am always watching out for Supercheap specials on line.
My car is a 2015 Corolla. It starts marginally quicker on cold mornings and sounds like it struggles slightly less compared to OEM mineral motor oil. With my regular short stop-go trips, oil gets to operating temp (temp gauge hits the middle) in about 5-10 mins. I accidently ran this oil for about 16,000km once and there was no perceivable difference in engine feel/performance after replacing the same oil back in; suggesting high quality additives. This brings me on to the final point. I wanted to find out if this was a "true" synthetic blend. These proper blends contain group IV base oils that consists of polyalphaolefins (PAOs), which gives it its true synthetic base property. After checking the safety data sheet on the Castro website, it turns it this oil is ... MoreMy car is a 2015 Corolla. It starts marginally quicker on cold mornings and sounds like it struggles slightly less compared to OEM mineral motor oil. With my regular short stop-go trips, oil gets to operating temp (temp gauge hits the middle) in about 5-10 mins. I accidently ran this oil for about 16,000km once and there was no perceivable difference in engine feel/performance after replacing the same oil back in; suggesting high quality additives. This brings me on to the final point. I wanted to find out if this was a "true" synthetic blend. These proper blends contain group IV base oils that consists of polyalphaolefins (PAOs), which gives it its true synthetic base property. After checking the safety data sheet on the Castro website, it turns it this oil is actually a highly refined base mineral oil. Combined with the oil specs on the product data sheet, I've managed to categorized this blend into the Group III "quasi-synthetic" oils. I'll leave that fact there. Doesn't remove from the fact that this oil performs functionally well, particularly with my high engine stressing short stop and start driving trips. Just don't be fooled by the "full synthetic" in the name and associate that with larger oil change intervals. Oil and filters are cheap, engine is not.
I use this on my H6 Subaru Liberty and change every 5000kms for peace of mind. I've easily gone through at least 20 bottles of this over the past few years. The car runs beautifully and not at all like it has a quarter million kms on it. Has kept the motor very healthy and the oil always looks great when I drain it.
Qaulity versus budget is more often than not the way we choose parts and products to care for our cars!Castrol edge isn't the cheapest out there but it's definitely punching above it's "weight" in regards to what it provides your engine! Quiet running engine with a smooth idle, weather stop and go traffic or out in the country soaking up the highway km's, it's the perfect all rounder!Has been my oil of choice for years in my daily driven 190kw calais with 170,000km it still purs like a kitten!So for all of the above reasons I rate Castrol edge 5 stars
My bmw 135i n55 only gets this stuff this is what is recommended for my car and its stated on my oil cap. Would not even bother putting anything else in it. Bit pricey but well worth the money. Also used it on my older model lexus 2jz and it is only as good as its owner.Give it the right stuff and you wont have issues.Castrol for the win ;)
| Warranty | Manufacturers warranty |
| Base Type | Fully Synthetic |
| Density at 20°C | 0.8522 g/ml |
| Flash Point | 234 °C |
| Fuel Type | Engine Oils - Premium |
