Best 0w40 Engine Oil Fully Synthetic of 2026

Last updated on 03/04/2026

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TotalEnergies Quartz 9000 Energy 0W40 ACEA A3/B4, API CF/SP Engine Oil Advanced Synthetic Ultimate Protection 5L

TotalEnergies Quartz 9000 Energy 0W40 ACEA A3/B4, API CF/SP Engine Oil Advanced Synthetic Ultimate Protection 5L

Approved for top performance.
Enhances engine cleanliness significantly.
Superior resistance to aging.

Main Highlights

Approvals: ASTON MARTIN (4.0L TwinTurbo V8 & 6.0L V12 Naturally aspirated engines), MB-Approval 229.5, MB-Approval 226.5, VW 502.00/505.00, Ford WSS-M2C937-A, BMW LL-01
Classifications: ACEA A3/B4, API CF, API SP
TotalEnergies Quartz 9000 Energy 0W-40 are combined with synthetic technology
Reduces emissions to improve engine cleanliness
Engine start-ups are easier, high standard ageing resistance

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TotalEnergies Quartz 9000 Energy 0W40 ACEA A3/B4, API CF/SP Engine Oil Advanced Synthetic Ultimate Protection 5L

Approved for top performance.
Enhances engine cleanliness significantly.
Superior resistance to aging.

Main Highlights

Approvals: ASTON MARTIN (4.0L TwinTurbo V8 & 6.0L V12 Naturally aspirated engines), MB-Approval 229.5, MB-Approval 226.5, VW 502.00/505.00, Ford WSS-M2C937-A, BMW LL-01
Classifications: ACEA A3/B4, API CF, API SP
TotalEnergies Quartz 9000 Energy 0W-40 are combined with synthetic technology
Reduces emissions to improve engine cleanliness
Engine start-ups are easier, high standard ageing resistance

Value for Money

Castrol EDGE 0W-40 A3/B4 Engine Oil 1L + Castrol EDGE 0W-40 A3/B4 Engine Oil 4L

Castrol EDGE 0W-40 A3/B4 Engine Oil 1L + Castrol EDGE 0W-40 A3/B4 Engine Oil 4L

Suitable for diverse vehicle types.
Enhances engine performance effectively.
Compatible with multiple specifications.

Main Highlights

Suitable for use in automotive gasoline and diesel vehicles where the manufacturer recommends: ACEA A3/B4, API SL or earlier specification 0W-40 lubricant.
Specifications: ACEA A3/B4 API SL BMW Longlife-01 MB-Approval 229.3/ 229.5 VW 502 00/ 505 00 Renault RN 0700 / RN 0710
Maximises short and long term engine performance
Suitable for use in automotive gasoline and diesel vehicles where the manufacturer recommends: ACEA A3/B4, API SL or earlier specification 0W-40 lubricant.
Specifications: SAE 0W-40 ACEA A3/B3, A3/B4 API SN/CF (backwardly compatible with API SM, API SL and other previous API specs) Manufacturer Approvals Meets Ford WSS-M2C937-A MB-Approval 229.3/ MB 229.5 Porsche A40 VW 502 00 / VW 505 00
Maximises short and long term engine performance

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Castrol EDGE 0W-40 A3/B4 Engine Oil 1L + Castrol EDGE 0W-40 A3/B4 Engine Oil 4L

Suitable for diverse vehicle types.
Enhances engine performance effectively.
Compatible with multiple specifications.

Main Highlights

Suitable for use in automotive gasoline and diesel vehicles where the manufacturer recommends: ACEA A3/B4, API SL or earlier specification 0W-40 lubricant.
Specifications: ACEA A3/B4 API SL BMW Longlife-01 MB-Approval 229.3/ 229.5 VW 502 00/ 505 00 Renault RN 0700 / RN 0710
Maximises short and long term engine performance
Suitable for use in automotive gasoline and diesel vehicles where the manufacturer recommends: ACEA A3/B4, API SL or earlier specification 0W-40 lubricant.
Specifications: SAE 0W-40 ACEA A3/B3, A3/B4 API SN/CF (backwardly compatible with API SM, API SL and other previous API specs) Manufacturer Approvals Meets Ford WSS-M2C937-A MB-Approval 229.3/ MB 229.5 Porsche A40 VW 502 00 / VW 505 00
Maximises short and long term engine performance

Mercedes-Benz Genuine AMG 0W40 Engine Oil 5L High Performance Synthetic Motor Oil OEM MB 229.5 Specification Superior Protection Efficiency & Reliability A000989650813FCCK

Mercedes-Benz Genuine AMG 0W40 Engine Oil 5L High Performance Synthetic Motor Oil OEM MB 229.5 Specification Superior Protection Efficiency & Reliability A000989650813FCCK

Genuine Mercedes-Benz quality assurance.
High-performance engine protection guaranteed.
Enhances fuel efficiency effortlessly.

Main Highlights

Genuine Mercedes-Benz AMG Engine Oil. Original AMG 0W40 synthetic motor oil, manufactured to Mercedes-Benz OEM standards for high-performance engines.
High Performance & Protection. Specially formulated to protect against wear, reduce engine deposits, and maintain peak engine performance under extreme conditions.
MB 229.5 Specification. Meets Mercedes-Benz MB 229.5 specification, ensuring optimal engine longevity, efficiency, and compatibility with AMG engines.
Enhances Fuel Efficiency. Designed for smooth engine operation and reduced friction, helping to maintain fuel economy without compromising power.
5 Litre Bottle – OEM Part. Supplied in a 5L container, ideal for servicing or top-up; Mercedes-Benz part number A000989650813FCCK for reference and OEM quality assurance.

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Mercedes-Benz Genuine AMG 0W40 Engine Oil 5L High Performance Synthetic Motor Oil OEM MB 229.5 Specification Superior Protection Efficiency & Reliability A000989650813FCCK

Genuine Mercedes-Benz quality assurance.
High-performance engine protection guaranteed.
Enhances fuel efficiency effortlessly.

Main Highlights

Genuine Mercedes-Benz AMG Engine Oil. Original AMG 0W40 synthetic motor oil, manufactured to Mercedes-Benz OEM standards for high-performance engines.
High Performance & Protection. Specially formulated to protect against wear, reduce engine deposits, and maintain peak engine performance under extreme conditions.
MB 229.5 Specification. Meets Mercedes-Benz MB 229.5 specification, ensuring optimal engine longevity, efficiency, and compatibility with AMG engines.
Enhances Fuel Efficiency. Designed for smooth engine operation and reduced friction, helping to maintain fuel economy without compromising power.
5 Litre Bottle – OEM Part. Supplied in a 5L container, ideal for servicing or top-up; Mercedes-Benz part number A000989650813FCCK for reference and OEM quality assurance.

Liqui Moly Synthoil Energy 0W-40 Fully Synthetic Engine Oil - SKU 9515

Liqui Moly Synthoil Energy 0W-40 Fully Synthetic Engine Oil - SKU 9515

Instant lubrication in cold starts.
Outstanding engine cleanliness maintained.
High wear resistance ensures durability.

Main Highlights

Instant lubrication after cold start
Outstanding engine cleanliness
High lubrication reliability
High wear resistance
Highest fuel economy

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Liqui Moly Synthoil Energy 0W-40 Fully Synthetic Engine Oil - SKU 9515

Instant lubrication in cold starts.
Outstanding engine cleanliness maintained.
High wear resistance ensures durability.

Main Highlights

Instant lubrication after cold start
Outstanding engine cleanliness
High lubrication reliability
High wear resistance
Highest fuel economy

Millers Oils XF Longlife Fully Synthetic Engine Oil 0W-40, 5 litres

Millers Oils XF Longlife Fully Synthetic Engine Oil 0W-40, 5 litres

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Millers Oils XF Longlife Fully Synthetic Engine Oil 0W-40, 5 litres

LIQUI MOLY Synthoil Energy 0W-40 | 5 L | Fully synthetic engine oil | SKU: 1361

LIQUI MOLY Synthoil Energy 0W-40 | 5 L | Fully synthetic engine oil | SKU: 1361

Enhanced engine performance guaranteed.
Excellent for modern vehicles.
Ideal for extended oil changes.

Main Highlights

For the greatest engine performance! Fully synthetic low-viscosity motor oil. Fast cold start properties. Keeps oil consumption low. Prevents build-up of harmful deposits.
Optimal for modern passenger vehicles with gasoline and diesel engines with and without turbochargers and with and without charge air cooling.
The operating instructions of the vehicle and engine manufacturers must be followed.
Especially suitable where there are long intervals between oil changes and heavy duty engine requirements.

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LIQUI MOLY Synthoil Energy 0W-40 | 5 L | Fully synthetic engine oil | SKU: 1361

Enhanced engine performance guaranteed.
Excellent for modern vehicles.
Ideal for extended oil changes.

Main Highlights

For the greatest engine performance! Fully synthetic low-viscosity motor oil. Fast cold start properties. Keeps oil consumption low. Prevents build-up of harmful deposits.
Optimal for modern passenger vehicles with gasoline and diesel engines with and without turbochargers and with and without charge air cooling.
The operating instructions of the vehicle and engine manufacturers must be followed.
Especially suitable where there are long intervals between oil changes and heavy duty engine requirements.

WOL SAE 0W40 Fully Synthetic API SN Synthoil Energy Engine Oil 9515 ACEA A3/B4 Car Oil (5L)

WOL SAE 0W40 Fully Synthetic API SN Synthoil Energy Engine Oil 9515 ACEA A3/B4 Car Oil (5L)

WOL WORLD OF LUBRICANT

Superior low-temperature performance.
Enhanced engine cleanliness guaranteed.
Optimized for fuel economy efficiency.

Main Highlights

Synthoil Energy SAE 0W-40 is a modern, fully synthetic, low friction motor oil for all season use.
This unconventional synthetic-based oil using advanced additive technology ensures low viscosity and high shear stability for the motor oil and reliably prevents the formation of deposits.
Synthoil Energy SAE 0W-40 is recommended for gasoline and Diesel engines, including engines with turbochargers and catalytic converters.
Properties - rapid oil delivery at low temperatures - outstanding engine cleanliness - high lubrication reliability - high wear resistance - highest fuel economy - low evaporation loss - tested for turbochargers and catalytic converters
Synthoil Energy SAE 0W-40 is especially suitable where there are long intervals between oil changes and heavy duty engine requirements.
While application the operating instructions of the vehicle and engine manufacturers must be follow.

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WOL WORLD OF LUBRICANT

WOL SAE 0W40 Fully Synthetic API SN Synthoil Energy Engine Oil 9515 ACEA A3/B4 Car Oil (5L)

Superior low-temperature performance.
Enhanced engine cleanliness guaranteed.
Optimized for fuel economy efficiency.

Main Highlights

Synthoil Energy SAE 0W-40 is a modern, fully synthetic, low friction motor oil for all season use.
This unconventional synthetic-based oil using advanced additive technology ensures low viscosity and high shear stability for the motor oil and reliably prevents the formation of deposits.
Synthoil Energy SAE 0W-40 is recommended for gasoline and Diesel engines, including engines with turbochargers and catalytic converters.
Properties - rapid oil delivery at low temperatures - outstanding engine cleanliness - high lubrication reliability - high wear resistance - highest fuel economy - low evaporation loss - tested for turbochargers and catalytic converters
Synthoil Energy SAE 0W-40 is especially suitable where there are long intervals between oil changes and heavy duty engine requirements.
While application the operating instructions of the vehicle and engine manufacturers must be follow.

Castrol EDGE 0W-40 A3/B4 Engine Oil 4L

Castrol EDGE 0W-40 A3/B4 Engine Oil 4L

Maximises engine performance effectively.
Improves engine efficiency significantly.
Reduces deposits for better response.

Main Highlights

Suitable for use in automotive gasoline and diesel vehicles where the manufacturer recommends: ACEA A3/B4, API SL or earlier specification 0W-40 lubricant.
Specifications: SAE 0W-40 ACEA A3/B3, A3/B4 API SN/CF (backwardly compatible with API SM, API SL and other previous API specs) Manufacturer Approvals Meets Ford WSS-M2C937-A MB-Approval 229.3/ MB 229.5 Porsche A40 VW 502 00 / VW 505 00
Maximises short and long term engine performance
Improves engine efficiency, independently qualified
Reduces engine deposits to help maximise engine response Exceed high performance standards set by premium car manufacturers including all FPV models, modern European and Japanese prestige vehicle

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Castrol EDGE 0W-40 A3/B4 Engine Oil 4L

Maximises engine performance effectively.
Improves engine efficiency significantly.
Reduces deposits for better response.

Main Highlights

Suitable for use in automotive gasoline and diesel vehicles where the manufacturer recommends: ACEA A3/B4, API SL or earlier specification 0W-40 lubricant.
Specifications: SAE 0W-40 ACEA A3/B3, A3/B4 API SN/CF (backwardly compatible with API SM, API SL and other previous API specs) Manufacturer Approvals Meets Ford WSS-M2C937-A MB-Approval 229.3/ MB 229.5 Porsche A40 VW 502 00 / VW 505 00
Maximises short and long term engine performance
Improves engine efficiency, independently qualified
Reduces engine deposits to help maximise engine response Exceed high performance standards set by premium car manufacturers including all FPV models, modern European and Japanese prestige vehicle

0W-40 Fully Synthetic Engine Oil ACEA A3/B4 5 Litre 5L

0W-40 Fully Synthetic Engine Oil ACEA A3/B4 5 Litre 5L

Stay in grade performance.
Excellent wear protection.
Protects against rust and corrosion.

Main Highlights

Stay in grade performance
Excellent wear protection
Protects against rust and corrosion
Oxidative and thermally stable
Excellent shear stability
Control of sludge and piston deposits
Exceptional low temperature performance

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0W-40 Fully Synthetic Engine Oil ACEA A3/B4 5 Litre 5L

Stay in grade performance.
Excellent wear protection.
Protects against rust and corrosion.

Main Highlights

Stay in grade performance
Excellent wear protection
Protects against rust and corrosion
Oxidative and thermally stable
Excellent shear stability
Control of sludge and piston deposits
Exceptional low temperature performance

Shell Helix Ultra Pro AR-L 0W-40 Synthetic Engine Oil Renault Sport RN17 RSA 5 Litre 5L

Shell Helix Ultra Pro AR-L 0W-40 Synthetic Engine Oil Renault Sport RN17 RSA 5 Litre 5L

Approved for Renault specifications.
Ideal for gasoline and diesel.
Protects GPF and DPF systems.

Main Highlights

Renault RN17 RSA
ACEA C3
Helix Ultra Professional AR-L 0W-40 for gasoline engines is approved against the technically challenging Renault RSA specifications. It can be used for diesel engines requiring RN17 under cold climate.
Its low-SAPS formulation helps to protect GPF DPF systems from plugging.

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Shell Helix Ultra Pro AR-L 0W-40 Synthetic Engine Oil Renault Sport RN17 RSA 5 Litre 5L

Approved for Renault specifications.
Ideal for gasoline and diesel.
Protects GPF and DPF systems.

Main Highlights

Renault RN17 RSA
ACEA C3
Helix Ultra Professional AR-L 0W-40 for gasoline engines is approved against the technically challenging Renault RSA specifications. It can be used for diesel engines requiring RN17 under cold climate.
Its low-SAPS formulation helps to protect GPF DPF systems from plugging.

We scanned 326 products

We reviewed these offers relevant to the 0w40 Engine Oil Fully Synthetic 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 TotalEnergies, Castrol, Mercedes-Benz, Liqui Moly, Millers Oils, WOL WORLD OF LUBRICANT, Smith & Allan, Shell, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best 0w40 Engine Oil Fully Synthetic in the market, we considered we took a deep dive into 1631 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 TotalEnergies Quartz 9000 Energy 0W40 ACEA A3/B4, API CF/SP Engine Oil Advanced Synthetic Ultimate Protection 5L. We love many things about this product by TotalEnergies. What sets it apart from the competition is Approved for top performance. , Enhances engine cleanliness significantly. , Superior resistance to aging. .
The best value product for most shoppers and where user satisfaction is continuously the highest is Castrol EDGE 0W-40 A3/B4 Engine Oil 1L + Castrol EDGE 0W-40 A3/B4 Engine Oil 4L by Castrol based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for 0w40 Engine Oil Fully Synthetic and the best cost-to-value ratio is Castrol EDGE 0W-40 A3/B4 Engine Oil 4Lat Castrol with a 28% discount.
Our list of the best 0w40 Engine Oil Fully Synthetic 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.