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Best High Mileage Diesel Engine Oil of 2026
Last updated on 03/04/2026
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1
Liqui Moly 8973 Top Tec 4200 5W-30 5L
Liqui Moly
30% Off
Why we love it
Universal for latest engine technologies.
Suitable for Benzin, Diesel engines.
Aids engines with exhaust aftertreatment.
Main Highlights
Can be used universally for the latest engine technologies from Audi, BMW, Mercedes and the VW Group.
Appropriate for Benzin and Dieselengines with and without prolonged service intervals respectively flexible interval as well adequate for engines with and without exhaust aftertreatment such as Diesel particulate filter (DPF).
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9.8
Exceptional
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9.8
Exceptional
Liqui Moly
Liqui Moly 8973 Top Tec 4200 5W-30 5L
30% Off
Check Price
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Why we love it
Universal for latest engine technologies.
Suitable for Benzin, Diesel engines.
Aids engines with exhaust aftertreatment.
Main Highlights
Can be used universally for the latest engine technologies from Audi, BMW, Mercedes and the VW Group.
Appropriate for Benzin and Dieselengines with and without prolonged service intervals respectively flexible interval as well adequate for engines with and without exhaust aftertreatment such as Diesel particulate filter (DPF).
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Value for Money
2
Mannol 5 Litre Energy 5W-30 Engine Oil 7908 API SN/CH-4 ACEA C2 Premium Synthetic Ester Technology
MANNOL
Why we love it
Ensures optimal engine performance.
Extends vehicle's lifespan.
Promotes fuel efficiency.
Main Highlights
SPECIFICATIONS: SAE 5W-30 Synthetic Engine Oil
RECOMMENDATION: API SN/CH-4, ACEA C2, ACEA C3, VOLKSWAGEN 505 01, BMW LL-04, MB 229.51, MB 229.52, MB 229.31, MB 226.5, GM dexos2, RENAULT RN0700, RENAULT RN0710
PRODUCT PROPERTIES: Innovative, versatile, all-synthetic ester-containing premium synthetic engine oil for modern diesel and gas turbocharged and non-turbocharged engines. Designed in accordance with the requirements of European automakers.
ADDITIONAL INFO: Designed for gasoline and diesel engines in a wide fleet of cars, light SUVs, minibuses and light trucks of European and other manufacturers, where the performance level of ACEA C3 is required.
DISCLAIMER: The oil is not suitable for use in heavy trucks and similar vehicles!
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9.6
Superb
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9.6
Superb
MANNOL
Mannol 5 Litre Energy 5W-30 Engine Oil 7908 API SN/CH-4 ACEA C2 Premium Synthetic Ester Technology
Check Price
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Why we love it
Ensures optimal engine performance.
Extends vehicle's lifespan.
Promotes fuel efficiency.
Main Highlights
SPECIFICATIONS: SAE 5W-30 Synthetic Engine Oil
RECOMMENDATION: API SN/CH-4, ACEA C2, ACEA C3, VOLKSWAGEN 505 01, BMW LL-04, MB 229.51, MB 229.52, MB 229.31, MB 226.5, GM dexos2, RENAULT RN0700, RENAULT RN0710
PRODUCT PROPERTIES: Innovative, versatile, all-synthetic ester-containing premium synthetic engine oil for modern diesel and gas turbocharged and non-turbocharged engines. Designed in accordance with the requirements of European automakers.
ADDITIONAL INFO: Designed for gasoline and diesel engines in a wide fleet of cars, light SUVs, minibuses and light trucks of European and other manufacturers, where the performance level of ACEA C3 is required.
DISCLAIMER: The oil is not suitable for use in heavy trucks and similar vehicles!
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3
TotalEnergies Quartz 9000 5W40 Engine Oil ACEA A3/B4, API SN/CF Age-Resistance Technology Advanced Synthetic Motor Oil Lubricant - 5L
TotalEnergies
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
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9.4
Superb
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9.4
Superb
TotalEnergies
TotalEnergies Quartz 9000 5W40 Engine Oil ACEA A3/B4, API SN/CF Age-Resistance Technology Advanced Synthetic Motor Oil Lubricant - 5L
Check Price
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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
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4
Castrol EDGE 5W-30 LL Engine Oil 4L
Castrol
43% Off
Why we love it
Suits multiple high-end vehicle brands.
Boosts performance under pressure.
Improves engine efficiency significantly.
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
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
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9.2
Superb
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9.2
Superb
Castrol
Castrol EDGE 5W-30 LL Engine Oil 4L
43% Off
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Why we love it
Suits multiple high-end vehicle brands.
Boosts performance under pressure.
Improves engine efficiency significantly.
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
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
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5
TotalEnergies Quartz 7000 10W40 Engine Oil - ACEA A3/B4, API SN/CF - Clean-Shield Technology - Synthetic Motor Oil Lubricant - 5L
TotalEnergies
Why we love it
Extends engine life effectively.
Compatible with multiple brands.
Ensures excellent high-temperature performance.
Main Highlights
Approvals: VW 501.01, VW 505.00, RENAULT RN 0700/0710
Compatible: FIAT 9.55535-G2, MB-229.3, PSA B71 2294
Classifications: ACEA A3/B4, API CF, API SN
TotalEnergies Quartz 7000 Energy 10W-40 Enhanced Properties specific to Diesel engines
Excellent Performance at high temperatures to extend engine life.
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9.1
Superb
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9.1
Superb
TotalEnergies
TotalEnergies Quartz 7000 10W40 Engine Oil - ACEA A3/B4, API SN/CF - Clean-Shield Technology - Synthetic Motor Oil Lubricant - 5L
Check Price
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Why we love it
Extends engine life effectively.
Compatible with multiple brands.
Ensures excellent high-temperature performance.
Main Highlights
Approvals: VW 501.01, VW 505.00, RENAULT RN 0700/0710
Compatible: FIAT 9.55535-G2, MB-229.3, PSA B71 2294
Classifications: ACEA A3/B4, API CF, API SN
TotalEnergies Quartz 7000 Energy 10W-40 Enhanced Properties specific to Diesel engines
Excellent Performance at high temperatures to extend engine life.
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6
MOTORWORLD Mineral Engine Oil 15W-40 A3/B4 – High-Performance Mineral Motor Oil for Petrol & Diesel Engines, ACEA A3 B4 Approved – 5L
Motor World
Why we love it
Reliable protection for older engines.
Broad compatibility with various manufacturers.
Reduces wear and maintains cleanliness.
Main Highlights
Reliable 15W-40 Mineral Engine Oil – MOTORWORLD A3/B4 provides dependable engine protection and smooth operation for a wide range of older petrol and diesel vehicles.
ACEA A3/B4 Approved – Broad Vehicle Compatibility – Meets ACEA A3/B4 standards, making it suitable for various manufacturers including older models from Ford, Vauxhall, Peugeot, Renault, and more.
Engine Wear Protection and Clean Operation – Reduces engine wear and protects against sludge and deposits, keeping engines running cleaner and more efficiently over time.
Cold Start Performance and Thermal Stability – Ensures consistent lubrication at startup and under high temperatures, helping to maintain engine health in all conditions.
Great for Older Engines and High-Mileage Vehicles – Formulated to meet the demands of older engine designs that require mineral-based oil, offering lasting protection in everyday driving.
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9.1
Superb
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9.1
Superb
Motor World
MOTORWORLD Mineral Engine Oil 15W-40 A3/B4 – High-Performance Mineral Motor Oil for Petrol & Diesel Engines, ACEA A3 B4 Approved – 5L
Check Price
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Why we love it
Reliable protection for older engines.
Broad compatibility with various manufacturers.
Reduces wear and maintains cleanliness.
Main Highlights
Reliable 15W-40 Mineral Engine Oil – MOTORWORLD A3/B4 provides dependable engine protection and smooth operation for a wide range of older petrol and diesel vehicles.
ACEA A3/B4 Approved – Broad Vehicle Compatibility – Meets ACEA A3/B4 standards, making it suitable for various manufacturers including older models from Ford, Vauxhall, Peugeot, Renault, and more.
Engine Wear Protection and Clean Operation – Reduces engine wear and protects against sludge and deposits, keeping engines running cleaner and more efficiently over time.
Cold Start Performance and Thermal Stability – Ensures consistent lubrication at startup and under high temperatures, helping to maintain engine health in all conditions.
Great for Older Engines and High-Mileage Vehicles – Formulated to meet the demands of older engine designs that require mineral-based oil, offering lasting protection in everyday driving.
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7
ELF Evolution 900 SXR 5W40 Engine Oil - ACEA A3/B4, API SN/CF Synthetic Technology MB 229.5 Motor Oil - 5L
ELF
3% Off
Why we love it
Meets stringent industry approvals.
Keeps engine exceptionally clean.
Reduces wear in stop-start.
Main Highlights
Approvals: RN 0700/0710, PSA B71 2296, MB-Approval 229.5, VW 502.00/505.00, Porsche A40, BMW LL-01
Compatible: CHRYSLER MS-12991, FIAT 9.55535-M2
Classifications: ACEA A3/B4, API CF, API SN
ELF EVOLUTION 900 SXR 5W-40 ensures an exceptionally clean engine.
Proven to reduce wear in stop-start situations
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8.9
Excellent
Check Price
8.9
Excellent
ELF
ELF Evolution 900 SXR 5W40 Engine Oil - ACEA A3/B4, API SN/CF Synthetic Technology MB 229.5 Motor Oil - 5L
3% Off
Check Price
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Why we love it
Meets stringent industry approvals.
Keeps engine exceptionally clean.
Reduces wear in stop-start.
Main Highlights
Approvals: RN 0700/0710, PSA B71 2296, MB-Approval 229.5, VW 502.00/505.00, Porsche A40, BMW LL-01
Compatible: CHRYSLER MS-12991, FIAT 9.55535-M2
Classifications: ACEA A3/B4, API CF, API SN
ELF EVOLUTION 900 SXR 5W-40 ensures an exceptionally clean engine.
Proven to reduce wear in stop-start situations
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8
Carlube Triple R 15W-40 ACEA A3/B4, API SN High Mileage Semi Synthetic Engine Oil 4L
Carlube
Why we love it
Optimal for higher mileage engines.
Delivers excellent engine protection.
High Mileage Engine Oil.
Main Highlights
ACEA:A3/B4, API: SN, OEM: MB 229.1
Suitable for use in higer mileage petrol and diesel engines, including classic cars.
Carlube Triple R 15W-40 engine oil delivers excellent performance in both engine protection and cleanliness.
4 Litre jug of 15W-40 High Mileage Engine Oil.
Try the rest of the Carlube range.
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8.7
Excellent
Check Price
8.7
Excellent
Carlube
Carlube Triple R 15W-40 ACEA A3/B4, API SN High Mileage Semi Synthetic Engine Oil 4L
Check Price
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Why we love it
Optimal for higher mileage engines.
Delivers excellent engine protection.
High Mileage Engine Oil.
Main Highlights
ACEA:A3/B4, API: SN, OEM: MB 229.1
Suitable for use in higer mileage petrol and diesel engines, including classic cars.
Carlube Triple R 15W-40 engine oil delivers excellent performance in both engine protection and cleanliness.
4 Litre jug of 15W-40 High Mileage Engine Oil.
Try the rest of the Carlube range.
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9
Carlube Triple R 15W-40 ACEA A3/B4, API SN High Mileage Semi Synthetic Engine Oil 2L
Carlube
Why we love it
Enhances engine performance significantly.
Perfect for classic car owners.
Ideal for high mileage vehicles.
Main Highlights
Suitable for applications requiring the following specifications: ACEA A3/B4 API SN MB 229.1
Suitable for use in higer mileage petrol and diesel engines, including classic cars.
Carlube Triple R 15W-40 engine oil delivers excellent performance in both engine protection and cleanliness.
Exceptional all year round protection from cold start to high-temperature driving.
Optimum engine performance.
Show More
8.7
Excellent
Check Price
8.7
Excellent
Carlube
Carlube Triple R 15W-40 ACEA A3/B4, API SN High Mileage Semi Synthetic Engine Oil 2L
Check Price
Show More
Why we love it
Enhances engine performance significantly.
Perfect for classic car owners.
Ideal for high mileage vehicles.
Main Highlights
Suitable for applications requiring the following specifications: ACEA A3/B4 API SN MB 229.1
Suitable for use in higer mileage petrol and diesel engines, including classic cars.
Carlube Triple R 15W-40 engine oil delivers excellent performance in both engine protection and cleanliness.
Exceptional all year round protection from cold start to high-temperature driving.
Optimum engine performance.
Show More
10
Wynn's High-Performance Diesel Fuel System Treatment - Formula Gold Improves Engine Combustion & Acceleration - Reduces Fuel Consumption - Safe for All Diesel Engines - 500ml
Wynn's
Why we love it
Improves engine performance instantly.
Lowers fuel consumption efficiently.
Reduces harmful emissions effectively.
Main Highlights
✅ IMPROVES COMBUSTION FOR BETTER PERFORMANCE AND ACCELERATION: Designed to immediately enhance combustion, this high-performance diesel fuel system treatment improves the way in which fuel burns inside the engine. By promoting a more complete and efficient combustion process, it leads to improved throttle response and smoother acceleration. This results in a more dynamic driving experience, reducing hesitation and engine lag. Additionally, a more efficient burn reduces engine noise, making diesel engines operate more quietly and smoothly
✅ REDUCES FUEL CONSUMPTION FOR COST-EFFECTIVE DRIVING: By ensuring a cleaner and more efficient fuel system, this treatment helps lower fuel consumption. Deposits and impurities inside the fuel injectors can hinder proper fuel atomisation, leading to increased fuel usage. This advanced formula dissolves and prevents these deposits, allowing the engine to run at optimal efficiency, which translates into noticeable fuel savings. For frequent drivers or those looking to maximise fuel economy, this treatment provides a practical and effective solution to get the most mileage out of every tank.
✅ LOWERS HARMFUL EMISSIONS FOR A CLEANER EXHAUST SYSTEM: Designed to actively reduce carbon monoxide (CO) and hydrocarbon (HC) emissions, this diesel treatment contributes to cleaner exhaust gases. By promoting a more complete fuel burn, it significantly lowers unburned fuel residues that are released into the environment. This makes it particularly beneficial for vehicles undergoing emission testing or MOT inspections, helping engines comply with stricter environmental standards. The reduction of black smoke is another key advantage, improving air quality and making diesel engines more eco-friendly.
✅ CLEANS AND PROTECTS THE FUEL INJECTION SYSTEM FOR LONG-TERM ENGINE HEALTH: A clean fuel system is essential for optimal engine performance. This diesel fuel system treatment thoroughly cleans fuel injectors, preventing clogging and removing deposits that can lead to inefficiencies. By maintaining a clean injection system, fuel delivery is more precise, ensuring proper combustion and reducing engine wear. Additionally, the protective formula helps shield the fuel system from oxidation and corrosion, prolonging the lifespan of critical components.
✅ SAFE FOR ALL DIESEL ENGINES AND AFTER-TREATMENT SYSTEMS: Formulated to be completely safe for all modern and older diesel engines, this treatment is compatible with common-rail and direct-injection diesel systems. It does not harm after-treatment systems such as diesel particulate filters (DPF) or catalytic converters. The anti-corrosion properties help prevent rust and deposit buildup in the fuel system, ensuring long-term engine health. For best results, it is recommended to use this additive in every third tank of fuel.
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8.7
Excellent
Check Price
8.7
Excellent
Wynn's
Wynn's High-Performance Diesel Fuel System Treatment - Formula Gold Improves Engine Combustion & Acceleration - Reduces Fuel Consumption - Safe for All Diesel Engines - 500ml
Check Price
Show More
Why we love it
Improves engine performance instantly.
Lowers fuel consumption efficiently.
Reduces harmful emissions effectively.
Main Highlights
✅ IMPROVES COMBUSTION FOR BETTER PERFORMANCE AND ACCELERATION: Designed to immediately enhance combustion, this high-performance diesel fuel system treatment improves the way in which fuel burns inside the engine. By promoting a more complete and efficient combustion process, it leads to improved throttle response and smoother acceleration. This results in a more dynamic driving experience, reducing hesitation and engine lag. Additionally, a more efficient burn reduces engine noise, making diesel engines operate more quietly and smoothly
✅ REDUCES FUEL CONSUMPTION FOR COST-EFFECTIVE DRIVING: By ensuring a cleaner and more efficient fuel system, this treatment helps lower fuel consumption. Deposits and impurities inside the fuel injectors can hinder proper fuel atomisation, leading to increased fuel usage. This advanced formula dissolves and prevents these deposits, allowing the engine to run at optimal efficiency, which translates into noticeable fuel savings. For frequent drivers or those looking to maximise fuel economy, this treatment provides a practical and effective solution to get the most mileage out of every tank.
✅ LOWERS HARMFUL EMISSIONS FOR A CLEANER EXHAUST SYSTEM: Designed to actively reduce carbon monoxide (CO) and hydrocarbon (HC) emissions, this diesel treatment contributes to cleaner exhaust gases. By promoting a more complete fuel burn, it significantly lowers unburned fuel residues that are released into the environment. This makes it particularly beneficial for vehicles undergoing emission testing or MOT inspections, helping engines comply with stricter environmental standards. The reduction of black smoke is another key advantage, improving air quality and making diesel engines more eco-friendly.
✅ CLEANS AND PROTECTS THE FUEL INJECTION SYSTEM FOR LONG-TERM ENGINE HEALTH: A clean fuel system is essential for optimal engine performance. This diesel fuel system treatment thoroughly cleans fuel injectors, preventing clogging and removing deposits that can lead to inefficiencies. By maintaining a clean injection system, fuel delivery is more precise, ensuring proper combustion and reducing engine wear. Additionally, the protective formula helps shield the fuel system from oxidation and corrosion, prolonging the lifespan of critical components.
✅ SAFE FOR ALL DIESEL ENGINES AND AFTER-TREATMENT SYSTEMS: Formulated to be completely safe for all modern and older diesel engines, this treatment is compatible with common-rail and direct-injection diesel systems. It does not harm after-treatment systems such as diesel particulate filters (DPF) or catalytic converters. The anti-corrosion properties help prevent rust and deposit buildup in the fuel system, ensuring long-term engine health. For best results, it is recommended to use this additive in every third tank of fuel.
Show More
