10 Best Engine Oil 5w40 5l in The UK

Last updated on 07/08/2025
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Best Choice
1
9.9
Exceptional
Save 45%
Castrol EDGE 5W-40 Engine Oil 5L
Castrol
Castrol EDGE 5W-40 Engine Oil 5L
45% OffFree Shipping
Why We Love It
  • Improves overall engine efficiency.
  • Sustains maximum horsepower longer.
  • Delivers superior protection consistently.
Main Highlights
  • Suitable for use in automotive gasoline and diesel vehicles where the manufacturer recommends: ACEA C3, API SN/CF Lubricant
  • Specifications: ACEA C3 API SN/CF Meets Fiat 9.55535-S2 Meets Ford WSS-M2C917-A GM dexos2 * MB-Approval 226.5/ 229.31/ 229.51 Renault RN 0700 / RN 0710 VW 505 00/ 505 01
  • Delivers unsurpassed levels of protection across a variety of driving conditions and temperatures
  • Independently proven to Improve engine efficiency
  • Delivers and sustains maximum horsepower for longer, even when under pressure
9.9
Exceptional
Save 45%
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Best Value
2
9.9
Exceptional
LIQUI MOLY Molygen New Generation 5W-40 5L Engine oil SKU: 8536, yellow
Liqui Moly
LIQUI MOLY Molygen New Generation 5W-40 5L Engine oil SKU: 8536, yellow
Why We Love It
  • Outstanding engine cleanliness is ensured.
  • Excellent temperature behavior across ranges.
  • High shear stability for reliability.
Main Highlights
  • outstanding engine cleanliness
  • excellent high and low temperature behavior
  • excellent wear protection
  • outstanding lubrication reliability
  • high shear stability
9.9
Exceptional
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3
9.8
Exceptional
‎Shell Engine Lubricating Oil Shell Helix HX7 5W-40 5 Litres
‎Shell
‎Shell Engine Lubricating Oil Shell Helix HX7 5W-40 5 Litres
Why We Love It
  • Maintains engine cleanliness and efficiency.
  • Protects against wear and tear.
  • Compatible with various engine types.
Main Highlights
  • Shell Helix HX7 5W-40 is an engine oil with technology that helps maintain engine cleanliness and efficiency. Shell Helix HX7 helps maintain engine cleanliness and efficiency, preventing the formation of deposits and sludge. Suitable for a wide range of vehicles, even under the most demanding driving conditions.
  • Synthetic technology. Synthetic and mineral blended base oils provide higher performance than can be achieved with a mineral formulation. Shell's unique Active Cleansing Technology. Maintains engine performance by protecting against the formation of deposits. Active Cleansing. Helps remove dirt deposited by the use of lower quality oils. Excellent wear protection. Helps extend engine life by protecting against wear even in daily traffic conditions. Excellent resistance to degradation.
  • Maintains protection throughout the change interval. Low temperature performance. Flows faster for easier cold starting and engine warm-up. Low evaporation. Lower oil consumption and less refilling between change intervals. Suitable for all fuels. Suitable for petrol, diesel and gas engines as well as those using biodiesel or petrol/ethanol blends as fuel. Protection against LSPI (pre-ignition phenomenon). Modern turbocharged gasoline direct injection engines can suffer from LSPI, which causes severe engine damage.
  • Shell Helix HX7 helps to extend the life of modern engines under demanding daily traffic conditions by protecting them against wear. Shell Helix HX7 can be used in petrol, diesel (without particulate filter) and gas engines, as well as engines using biodiesel and petrol/ethanol blends as fuel. It can be used in modern turbocharged gasoline direct injection engines to protect against LSPI.
  • Specifications, approvals and recommendations: API SN PLUS, API SN, ACEA A3/B4, MB-Approval 229.3, VW Standard 502.00, 505.00. Meets the requirements of: Fiat (FCA) 9.55535-M2, Renault RN 0700, RN 0710
9.8
Exceptional
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4
9.7
Exceptional
Save 23%
Shell Helix Ultra 5W-40, 5 Litre
Shell
Shell Helix Ultra 5W-40, 5 Litre
23% Off
Why We Love It
  • Advanced formulation for performance engines.
  • Maximum protection in all climates.
  • Helps to prevent engine deposits.
Main Highlights
  • Shell Helix Ultra 5W-40 Fully synthetic motor oil – Shell’s most advanced formulation for high performance engines
  • Shell Helix Ultra’s fully synthetic formulation offers Shell’s maximum protection in very hot and extremely cold climates, and severe driving conditions
  • Specifications, Approvals and Recommendations: API SN PLUS, API SN, ACEA A3/B3, A3/B4,VW Standard 502.00 / 505.00, MB-Approval 229.5, 226.5
  • Porsche A40 / BMW Longlife-01 / Renault RN 0700, RN 0710 / PSA B71 2296 / Chrysler MS01725, 12991,Fiat 9.55535.Z2, Fiat 9.55535-N2 (Meets the requirements)
  • Shell Helix Ultra uses unique active cleansing technology to help high-performance engines operate at maximum efficiency by helping to protect them from power-robbing deposits and wear
9.7
Exceptional
Save 23%
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5
9.5
Superb
Castrol MAGNATEC 5W-40 DPF Engine Oil 5L, black
Castrol
Castrol MAGNATEC 5W-40 DPF Engine Oil 5L, black
Free Shipping
Why We Love It
  • Increased protection at all temperatures.
  • Suitable for multiple specifications.
  • Continuous protection for all conditions.
Main Highlights
  • Suitable for API SP, ILSAC GF-6, MB-Approval 229.3, GM dexos1 Gen 3* * Tested vs the API SN wear limit in the Sequence IVA test, and the ACEA wear limit in the OM646LA test.
  • Specifications: ACEA C3 API CF/SN Meets Fiat 9.55535-S2 Meets Ford WSS-M2C917-A MB-Approval 229.31/ 229.51 OPEL OV 040 1547 - D40 VW 505.00/ 505.01
  • Synthetic Diesel technology to provide increased protection in high and low temperature applications
  • Provides continuous protection for all driving conditions, styles and temperatures
9.5
Superb
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6
9.4
Superb
Save 43%
Castrol EDGE 5W-30 LL Engine Oil 5L
Castrol
Castrol EDGE 5W-30 LL Engine Oil 5L
43% OffFree 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
9.4
Superb
Save 43%
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7
9.2
Superb
Castrol MAGNATEC 5W-40 C3 Engine Oil 5L
Castrol
Castrol MAGNATEC 5W-40 C3 Engine Oil 5L
Free Shipping
Why We Love It
  • Ensures continuous protection for all drives.
  • Forms protective layer during start-up.
  • Reduces warm-up and start-stop wear.
Main Highlights
  • Provide continuous protection for all driving conditions, styles and temperatures;
  • Cling to your engine forming an extra layer that protects during start up and beyond;
  • Bond to metal surfaces to make engine parts more resistant to wear
  • Are combined with synthetic technology to provide increased protection in high and low temperature applications
  • Offer non-stop protection from every start
  • Dramatically reduce both warm-up and stop-start wear
9.2
Superb
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8
9.2
Superb
Save 26%
LIQUI MOLY Top Tec 4100 5W-40 | 5 L | Synthesis technology motor oil | SKU: 9511
Liqui Moly
LIQUI MOLY Top Tec 4100 5W-40 | 5 L | Synthesis technology motor oil | SKU: 9511
26% OffFree Shipping
Why We Love It
  • Environmentally friendly sulfur reduction.
  • Extremely high performance reserves.
  • Ideal for modern diesel engines.
Main Highlights
  • Sulfur reduced to protect the environment and the particulate filter
  • Synthetic technology low-viscosity motor oil with extremely high performance reserves
  • Optimal for state-of-the-art diesel engines with multi-valve technology and turbocharging with and without charge air cooling
  • Flash point: 232.0
9.2
Superb
Save 26%
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9
9.0
Superb
TotalEnergies Quartz 9000 5W40 Engine Oil ACEA A3/B4, API SN/CF Age-Resistance Technology Advanced Synthetic Motor Oil Lubricant - 5L
TotalEnergies
TotalEnergies Quartz 9000 5W40 Engine Oil ACEA A3/B4, API SN/CF Age-Resistance Technology Advanced Synthetic Motor Oil Lubricant - 5L
Free Shipping
Why We Love It
  • Superb compatibility with many models.
  • Meets numerous automotive approvals.
  • Maximises engine performance impressively.
Main Highlights
  • Suitable for: CHRYSLER MS-12991, FIAT 9.55535-G2, FIAT 9.55535-N2, FIAT 9.55535-Z2
  • Approvals: MB-APPROVAL 229.5, PORSCHE A40, PSA B71 2296, RENAULT RN0700, RENAULT RN0710, VW 502.00, VW 505.00
  • Compatible: FIAT 9.55535-M2
  • Classifications: ACEA A3/B4, API SP/CF
  • TotalEnergies Quartz 9000 5W-40 lowers friction and maximises engine performance
9.0
Superb
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10
8.9
Excellent
Save 22%
Castrol EDGE 5W-40 M Engine Oil 5L
Castrol
Castrol EDGE 5W-40 M Engine Oil 5L
22% OffFree Shipping
Why We Love It
  • Suitable for various vehicles.
  • Recommended by leading manufacturers.
  • Proven performance under extremes.
Main Highlights
  • Suitable for use in automotive gasoline and diesel vehicles where the manufacturer recommends an ACEA C3, API SN 5W-40 lubricant
  • Specfications: ACEA C3 API SN BMW Longlife-04 Meets Fiat 9.55535-S2 Porsche C40 VW 511 00
  • Recommended by world-leading car manufacturers
  • Protects the engine for the entire drain interval even under extreme pressure
  • Proven performance across a variety of driving conditions and temperatures
8.9
Excellent
Save 22%
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Premium Product

We scanned 444 products

We reviewed these offers relevant to the Engine Oil 5w40 5l 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, Liqui Moly, ‎Shell, Shell, TotalEnergies, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best Engine Oil 5w40 5l in the market, we considered we took a deep dive into 2221 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 Castrol EDGE 5W-40 Engine Oil 5L. We love many things about this product by Castrol. What sets it apart from the competition is Improves overall engine efficiency, Sustains maximum horsepower longer, Delivers superior protection consistently.
  • The best value product for most shoppers and where user satisfaction is continuously the highest is LIQUI MOLY Molygen New Generation 5W-40 5L Engine oil SKU: 8536, yellow by Liqui Moly based on online reviews by bloggers, experts and online shoppers.
  • The biggest bargain at the moment for Engine Oil 5w40 5l and the best cost-to-value ratio is Castrol EDGE 5W-40 Engine Oil 5Lat Castrol with a 45% discount.
  • Our list of the best Engine Oil 5w40 5l 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.