Duckhams Q Diesel 20W50 Cf4/Sg
Multigrade mineral heavy-duty diesel engine oil meeting API CF-4 and SG. Suitable for naturally aspirated and turbocharged diesel engines in passenger cars, light trucks and commercial fleets operating under all conditions.
Duckhams Q Diesel SAE 20W-50 is a multigrade mineral diesel engine oil formulated with a robust anti-wear and detergent additive system, meeting API CF-4 and API SG performance standards. It is suitable for both diesel and petrol engines in mixed fleets requiring SAE 20W-50 viscosity grade.
Key Features
- High-TBN additive system handles high-sulphur fuels and resists oil degradation
- Detergent/dispersant package controls soot, sludge and high-temperature deposits in diesel engines
- Multigrade viscosity provides start-up wear protection in cooler ambient conditions and film strength at high temperatures
- Effective anti-wear protection of pistons, rings, valve trains and bearings
Applications
- Naturally aspirated and turbocharged diesel engines in passenger cars and light trucks requiring API CF-4 or earlier
- Mixed fleets of diesel and four-stroke petrol engines requiring API SG or earlier
- Commercial road transport, agricultural and off-highway diesel equipment
Specifications
- SAE 20W-50
- API CF-4 / SG
| Packing | 18L |
|---|---|
| Brand | Duckhams |

Duckhams, a legendary British lubricant brand since 1899, has been a cornerstone of automotive excellence for over a century.
Founded by chemist Alexander Duckham, this iconic brand revolutionized the industry with Europe’s first multigrade oil, the distinctive green-hued Duckhams Q, transforming lubrication technology forever.
Renowned for its rich heritage in motoring and motorsport, Duckhams has powered iconic vehicles and legendary drivers, from classic Minis to Formula 1 champions like James Hunt and Ayrton Senna.
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Trusted by car enthusiasts and professionals worldwide, Duckhams continues to deliver unrivaled performance and protection, keeping engines moving smoothly across generations. Explore the timeless quality of Duckhams at Duckhams.com and experience a brand that’s as enduring as the vehicles it serves.
