Millers Oils Trident Professional 5W-40 Fully Synthetic Engine Oil

Professional-grade fully synthetic engine oil for modern petrol and diesel engines.
Millers Oils Trident Professional 5W-40 is a full SAPS, fully synthetic engine oil designed to meet the latest OEM specifications. Engineered for professional use, it delivers excellent protection, engine cleanliness and extended drain capability for both petrol and diesel engines requiring 5W-40 viscosity.

Key Features & Benefits

• Excellent Cold Start Protection: Superior low temperature flow when cold starting, instantly protecting vital engine components
• High Temperature Stability: Viscosity stability at high temperatures delivers reduced wear and tear on the engine and its components
• Engine Cleanliness: Advanced formulation provides exceptional engine cleanliness and durability which reduces emissions
• Extended Drain Capability: Engineered to provide extended service intervals when used according to manufacturer recommendations
• Stop-Start Technology: Millers Oils stop-start technology delivers instant protection under hot or cold conditions
• Wide OEM Approval: Meets multiple OEM specifications including BMW, Mercedes-Benz, VW, PSA, Renault, Fiat and Porsche
• Full SAPS Formulation: Full SAPS (Sulphated Ash, Phosphorus & Sulphur) for maximum engine protection
• Professional Grade: Suitable for the latest engine technology and professional workshop use

Technical Specifications

• Type: Fully Synthetic Engine Oil
• Viscosity Grade: SAE 5W-40
• SAPS Level: Full SAPS (Sulphated Ash, Phosphorus & Sulphur)
• ACEA Specification: A3/B4, A3/B3
• API Specification: SN PLUS, SN, SM, SL, CF
• Density @ 15°C: 0.853 g/ml
• Kinematic Viscosity @ 100°C: 13.6 cSt
• Flash Point: >210°C

OEM Approvals & Specifications

• BMW/MINI: Longlife-01 (LL-01), Longlife-98 (LL-98)
• Fiat: 9.55535-N2, 9.55535-M2
• Mercedes-Benz: MB 229.5, MB 229.3, MB 229.1, MB 226.5
• Porsche: A40
• PSA (Peugeot/Citroën): B71-2296, B71-2295, B71-2294
• Renault: RN0700, RN0710
• Volkswagen Group: VW 502 00 / 505 00, VW 500 00 / 501 01
• Asian Manufacturers: Suitable for Asian vehicle manufacturers requiring 5W-40 specification

Application & Compatibility

• Suitable For: Petrol/gasoline and diesel engines
• Engine Technology: Designed for the latest engine technology and modern engines
• Recommended For: Engines requiring 5W-40 viscosity meeting the above manufacturer specifications
• Professional Use: Ideal for professional workshops and demanding applications
• Stop-Start Engines: Specifically formulated for modern stop-start engine systems
• European Vehicles: Particularly suited for BMW, Mercedes-Benz, VW Group, PSA and Renault vehicles
• Performance Vehicles: Meets Porsche A40 specification for high-performance applications

Important Safety & Compatibility Information

• Always consult your vehicle owner's manual for the correct oil specification before use
• This is a full SAPS oil - not suitable for vehicles requiring low SAPS oil (check your handbook)
• Ensure the oil meets your vehicle manufacturer's required specifications
• Store in a cool, dry place away from direct sunlight and heat sources
• Avoid prolonged skin contact; wear protective gloves when handling
• Keep away from children and pets
• Dispose of used oil responsibly at authorized waste facilities - never pour down drains
• Follow your vehicle manufacturer's recommended oil change intervals

SHIPPING & RETURNS

Shipping

• Orders are dispatched within 1 working day from our UK warehouse.
• Standard delivery typically takes 2–5 working days, depending on the courier and your location.
• Tracking details (where available) are emailed to you once your order has been shipped.

Returns

• Change of mind returns are accepted within 14 days of delivery.
• Returned items must be unused, unopened and in their original packaging, in a condition suitable for resale.
• Parts that have been fitted to a vehicle or show signs of use cannot be accepted for a change of mind return.
• To start a return, please contact us with your order number and vehicle registration so we can confirm details and provide return instructions.

WHY CHOOSE US

Trusted Quality parts

All parts are sourced and supplied from reputable, trusted manufacturers so you can fit with confidence.

Competitive pricing

Most of our products are priced competitively to give you great value without compromising on quality.

Fast local delivery & collection

Choose speedy local delivery or collect directly from our main store at a time that suits you.

Friendly support

Get honest, knowledgeable advice from an experienced team that helps you find the right part first time.