Mannol Octane Plus 9954 Petrol Octane Booster

Boost your fuel quality and help protect your engine with Mannol Octane Plus 9954, a high-performance petrol fuel additive formulated to increase octane rating, improve combustion efficiency and clean the entire fuel system.

Suitable for all petrol engines, including naturally aspirated and turbocharged vehicles, Mannol Octane Plus helps reduce engine knock while improving throttle response, engine smoothness and overall performance. Its advanced detergent package cleans injectors, valves and the fuel system, helping to restore lost performance and prevent harmful deposits from forming.

Ideal for both standard and modified vehicles, it can also help compensate for lower-octane fuel where premium petrol is unavailable.

Suitable For

• All petrol engines
• Naturally aspirated and turbocharged vehicles
• Direct injection and port injection engines
• Vehicles fitted with catalytic converters
• Vehicles fitted with petrol particulate filters (GPF)
• Standard and performance vehicles

Directions for Use

• Add 450ml to approximately 45 litres of petrol.
• Mixing ratio: 1:100
• Suitable for regular use.
• Self-mixing when added to the fuel tank.

What's Included

• 1 × Mannol Octane Plus 9954 Fuel Additive

Key Features

• Increases fuel octane rating by approximately 3–6 points (depending on fuel quality)
• Helps reduce engine knock and pre-ignition
• Improves engine performance and throttle response
• Cleans fuel injectors, valves and the complete fuel system
• Helps prevent carbon, varnish and combustion deposits
• Supports smoother idle and quieter engine operation
• Provides additional lubrication for fuel system components
• Helps protect the fuel system against corrosion
• Reduces fuel consumption by improving combustion efficiency
• Helps lower exhaust emissions
• Safe for catalytic converters and petrol particulate filters (GPF)
• Compatible with all common fuel system materials

Benefits

• Improved engine performance
• Smoother acceleration and idle
• Increased protection against detonation
• Cleaner fuel system
• Reduced engine deposits
• Longer service life for injectors, fuel pumps and spark plugs
• Helps maintain maximum engine efficiency

Important Information

Suitable for petrol engines only.

For best results, add the product before refuelling to ensure thorough mixing with the fuel.

Performance improvements and octane increase may vary depending on the quality and octane rating of the fuel being treated.

Please note: Due to shipping restrictions, this product is available for local collection only and cannot be shipped.

Store in a cool, dry place away from direct sunlight. Shelf life is 5 years from the date of manufacture.

Photos are for illustration purposes only.