10 Best Castrol Edge 5w30 Diesel Engine Oil in The UK

Last updated on 17/07/2025
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Best Choice
1
9.8
Exceptional
Bundle of Castrol Oil Edge 5W-30 LL 5-litre + Castrol EDGE 5W-30 LL Engine Oil 1L
Castrol
Bundle of Castrol Oil Edge 5W-30 LL 5-litre + Castrol EDGE 5W-30 LL Engine Oil 1L
Why We Love It
  • World-class manufacturer recommendations.
  • Enhanced engine performance under pressure.
  • Proven to improve engine efficiency.
Main Highlights
  • Suitable for ACEA/VW/BMW/Porsche/Mercedes
  • Specifications: ACEA C3 - BMW - Longlife-04 - MB-Approval 229.31/ 229.51 - Porsche C30 - VW 504 00/ 507 00
  • Specifications : ACEA C3 - BMW - Longlife-04 - MB-Approval 229.31/ 229.51 - Porsche C30 - VW 504 00/ 507 00
  • Recommended by world-leading car manufacturers
  • Castrol EDGE boosted with Titanium FST sustains maximum performance even when under pressure
  • Protects the engine for the entire drain interval even under extreme pressure
  • Independently proven to improve engine efficiency
  • Castrol EDGE lowers friction and maximises engine performance
9.8
Exceptional
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Best Value
2
9.6
Superb
Castrol EDGE 5W-30 LL Engine Oil 5L
Castrol
Castrol EDGE 5W-30 LL Engine Oil 5L
Free Shipping
Why We Love It
  • Recommended by top manufacturers.
  • Protects under extreme pressure.
  • Lowers friction, maximises performance.
Main Highlights
  • Suitable for ACEA/VW/BMW/Porsche/Mercedes
  • Specifications: ACEA C3 - BMW - Longlife-04 - MB-Approval 229.31/ 229.51 - Porsche C30 - VW 504 00/ 507 00
  • Recommended by world-leading car manufacturers
  • Protects the engine for the entire drain interval even under extreme pressure
  • Castrol EDGE lowers friction and maximises engine performance
9.6
Superb
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3
9.4
Superb
Castrol Oil Edge 5W-30 C3 5-litre
Castrol
Castrol Oil Edge 5W-30 C3 5-litre
Free Shipping
Why We Love It
  • Offers maximum engine protection.
  • Minimizes friction effectively.
  • Guarantees proven performance.
Main Highlights
  • Is at its strongest when pressure is at its highest, keeping your car's engine protected
  • Reduces power-reducing friction at all engine speeds and conditions
  • Independently tested against the highest standards, for proven performance
9.4
Superb
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4
9.3
Superb
Castrol EDGE 5W-30 M Engine Oil 4L
Castrol
Castrol EDGE 5W-30 M Engine Oil 4L
Free Shipping
Why We Love It
  • Boosts maximum engine performance.
  • Maintains performance under pressure.
  • Improves overall engine efficiency.
Main Highlights
  • Suitable for ACEA/BMW/Porsche/Mercedes
  • Specifications: ACEA C3 API SN PLUS - BMW Longlife-04 - MB-Approval 229.31/ 229.51/ 229.52
  • Castrol EDGE boosted with Titanium FS sustains maximum performance even when under pressure
  • Independently proven to improve engine efficiency
  • Castrol EDGE lowers friction and maximises engine performance
9.3
Superb
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5
9.3
Superb
Save 9%
Castrol MAGNATEC 5W-30 A5 Engine Oil 5L
Castrol
Castrol MAGNATEC 5W-30 A5 Engine Oil 5L
9% Off
Why We Love It
  • Superior performance in extreme cold.
  • Combines patented DUALOCK technology.
  • Provides powerful wear protection.
Main Highlights
  • Suitable for use in automotive gasoline and diesel engines where the manufacturer recommends an ACEA A1/B1, A5/B5, API SN, ILSAC GF-5 or earlier specification 5W-30 lubricant
  • Specifications: ACEA A1/B1, A5/B5 - API SN - ILSAC GF-5 - Meets - Ford WSS-M2C913-C/ WSS-M2C913-D
  • Proven to reduce wear in stop-start situations- remove this statement
  • Provides superior performance under extreme cold start up conditions
  • combining patented DUALOCK molecule technology with Castrol’s most efficient full synthetic base oils. Forms a powerful force-field of wear protection
9.3
Superb
Save 9%
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6
9.2
Superb
Castrol EDGE 5W-40 Engine Oil 4L
Castrol
Castrol EDGE 5W-40 Engine Oil 4L
Free Shipping
Why We Love It
  • Boosts performance under pressure.
  • Improves engine efficiency independently.
  • Lowers friction, maximizes performance.
Main Highlights
  • Suitable for ACEA C3
  • Specifications: API SN/CF - BMW Longlife-01 - MB-Approval 226.5/ 229.3/ 229.5 - Porsche A40 - Renault RN0700 / RN0710 - VW 502 00/ 505 00
  • Castrol EDGE boosted with Titanium FST sustains maximum performance even when under pressure
  • Independently proven to improve engine efficiency
  • Castrol EDGE lowers friction and maximises engine performance
9.2
Superb
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7
9.1
Superb
Save 8%
Castrol GTX 5W-30 RN17 Engine Oil 5L
Castrol
Castrol GTX 5W-30 RN17 Engine Oil 5L
8% OffFree Shipping
Why We Love It
  • Suitable for Renault RN17 vehicles.
  • Offers superior engine sludge protection.
  • Extends life of your engine.
Main Highlights
  • Suitable in vehicles that require a Renault RN17 specifcation 5W-30 lubricant
  • Specifications: ACEA C3 Renault RN17
  • Provides superior protection against engine sludge
  • Advanced protection against viscosity and thermal breakdown
  • Premium quality base oils and anti wear additives to help extend the life of your engine
9.1
Superb
Save 8%
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8
9.0
Superb
Castrol GTX 5W-30 C4 Engine Oil 4L
Castrol
Castrol GTX 5W-30 C4 Engine Oil 4L
Free Shipping
Why We Love It
  • Keeps engines super clean.
  • No oil expiry date.
  • Recommended by top manufacturers.
Main Highlights
  • Suitable for use in automotive gasoline and diesel engines where the manufacturer recommends an ACEA C4 5W-30 lubricant.
  • Specifications: ACEA C4 MB-Approval 226.51 Renault RN 0720
  • Castrol GTX with sludge buster technology keeps youe engine 50 Percent cleaner than the industry standard
  • Item does not have expiry date, rather date mentioned on the product is manufacturer date
  • TYPE : Part Synthetic
9.0
Superb
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9
8.8
Excellent
Save 13%
Castrol MAGNATEC 5W-30 C2 Engine Oil 4L
Castrol
Castrol MAGNATEC 5W-30 C2 Engine Oil 4L
13% OffFree Shipping
Why We Love It
  • Suitable for ACEA/PSA vehicles.
  • Innovative DUALOCK technology protection.
  • Outstanding in extreme conditions.
Main Highlights
  • Suitable for ACEA/PSA
  • Specifications: ACEA C2 - PSA Approval B71 2290
  • Castrol MAGNATEC with DUALOCK technology forms a self-healing layer that clings to metal surfaces and protects your engine in busy traffic conditions
  • Provides continuous protection for all driving conditions, styles and temperatures
  • Delivers outstanding performance under extreme cold start up conditios
8.8
Excellent
Save 13%
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10
8.7
Excellent
Save 17%
Castrol MAGNATEC 5W-30 A3/B4 Engine Oil 4L
Castrol
Castrol MAGNATEC 5W-30 A3/B4 Engine Oil 4L
17% OffFree Shipping
Why We Love It
  • Compatible with many car types.
  • Forms strong protection field.
  • Improves warm-up wear dramatically.
Main Highlights
  • Suitable for use in automotive gasoline and diesel engines where the manufacturer recommends an ACE A3/B4, API SL or earlier specification 5W-30 lubricant.
  • Specifications: ACEA A3/B4 API SL MB-Approval 226.5 / 229.3 / 229.5 Renault RN 0700 / RN 0710 VW 502 00 / 505 00
  • Form a powerful force field of protection
  • Dramatically improves warm-up wear
8.7
Excellent
Save 17%
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We scanned 1044 products

We reviewed these offers relevant to the Castrol Edge 5w30 Diesel Engine Oil within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Castrol, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best Castrol Edge 5w30 Diesel Engine Oil in the market, we considered we took a deep dive into 5221 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

  • The clear winner of our analysis is Bundle of Castrol Oil Edge 5W-30 LL 5-litre + Castrol EDGE 5W-30 LL Engine Oil 1L. We love many things about this product by Castrol. What sets it apart from the competition is World-class manufacturer recommendations. , Enhanced engine performance under pressure. , Proven to improve engine efficiency.
  • The best value product for most shoppers and where user satisfaction is continuously the highest is Castrol EDGE 5W-30 LL Engine Oil 5L by Castrol based on online reviews by bloggers, experts and online shoppers.
  • The biggest bargain at the moment for Castrol Edge 5w30 Diesel Engine Oil and the best cost-to-value ratio is Castrol MAGNATEC 5W-30 A3/B4 Engine Oil 4Lat Castrol with a 17% discount.
  • Our list of the best Castrol Edge 5w30 Diesel Engine Oil is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.