We Chose The Best Engine Oil 5w40 in The UK - 10/2025

‎Shell Engine Lubricating Oil Shell Helix HX7 5W-40 5 Litres

‎Shell Engine Lubricating Oil Shell Helix HX7 5W-40 5 Litres

SHELL

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

9.6

Superb

9.6

Superb

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

We scanned 444 products

We reviewed these offers relevant to the Engine Oil 5w40 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, SHELL, Elf, MANNOL, Triple QX, Motor World, 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 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 Castrol EDGE 5W-40 Engine Oil 4L by Castrol based on online reviews by bloggers, experts and online shoppers.

The biggest bargain at the moment for Engine Oil 5w40 and the best cost-to-value ratio is Castrol EDGE 5W-30 LL Engine Oil 4Lat Castrol with a 29% discount.

Our list of the best Engine Oil 5w40 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.

Best Engine Oil 5w40 of 2025

We scanned 444 products

We concluded that: