STP Complete Fuel System Cleaner - Petrol - 400ml

STP® Complete Fuel System Cleaner for Petrol Engines 400ml is STP's best fuel additive. Proven on ...

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Product Information

Full details

This guide is for vehicle owners seeking to maintain optimal engine performance using STP Complete Fuel System Cleaner. The primary benefit is a cleaner fuel system, leading to improved fuel efficiency and reduced emissions. However, it's important to note that this product is designed for petrol engines only and will not work on diesel vehicles. This guide provides comprehensive information on usage, benefits, and troubleshooting to help you get the most out of your STP Complete Fuel System Cleaner.

All features

Model Part Number	50400EN
Brand	STP

Extended Product Information

FAQs

How often should I use STP Complete Fuel System Cleaner?

For best results, use the product every 4,000 miles (6,400km).

Is this product safe for my catalytic converter?

Yes, STP Complete Fuel System Cleaner is safe for use with catalytic converters.

Can I use this product with other fuel additives?

Yes, it is safe to use STP Complete Fuel System Cleaner with other STP additives.

What kind of engine is this product for?

This product is designed for petrol (gasoline) engines only.

What happens if I use too much of the product?

Exceeding the recommended dosage is not advisable. Always follow the instructions on the product label.

How long does it take to see results?

Some users report immediate improvements, while others may notice changes after a few days or tanks of fuel.

How much fuel does one bottle treat?

One 400ml bottle treats 50-60 liters of petrol.

Troubleshooting

Engine still hesitates or runs rough after use.

Ensure the product was added to a full tank of petrol and the correct dosage was used. Consider a second application if the issue persists, or seek professional mechanical advice.

No noticeable improvement in fuel economy.

The improvement in fuel economy might not be immediately noticeable. Continue using the product as directed and monitor your fuel consumption over several tanks of fuel. Also, consider other factors that may affect fuel economy, such as driving habits and tire pressure.

Product is difficult to pour into the fuel tank.

Use a funnel to ensure the entire contents of the bottle goes into the fuel tank without spillage.

Pros and Cons

Pros

Improves fuel efficiency.
Restores engine power and acceleration.
Reduces harmful emissions.
Protects fuel system components from corrosion.
Easy to use – just add to the fuel tank.

Cons

Only suitable for petrol engines.
Requires regular use for optimal results (every 4000 miles/6400km).
Results may vary depending on the condition of the fuel system before use.

Setup, Compatibility & Care

Setup:

Ensure your vehicle's engine is a petrol engine.
Add the entire contents of the 400ml bottle directly to a full tank of petrol.
For optimal results, use every 4000 miles (6400km).
Safe to use with other STP additives.

Compatibility:

Suitable for all classic and modern petrol engines.
Safe for use with catalytic converters.

Care:

Store the product in a cool, dry place.
Avoid contact with skin and eyes. If contact occurs, rinse thoroughly with water.
Keep out of reach of children.