Purpose and Specifications

STP Complete Fuel System Cleaner Diesel 400ml is a powerful additive designed specifically for diesel engines. It cleans the entire fuel system from tank to injectors, removing stubborn deposits that build up over time and restoring peak performance.

• Key Benefits: Cleans fuel injectors, valves, combustion chambers, and cylinder heads for smoother operation
• Restores lost power and acceleration while reducing hard starts, hesitation, knocks, and pings
• Prevents power loss and excessive smoke, keeping your diesel engine running clean
• Treats up to 75 liters of diesel fuel per bottle - one full tank application
• Proven effective after just 5,000 km of driving, with benefits lasting up to 10,000 km

Shelf life is 3-5 years when stored in a cool, dry place away from extreme temperatures (-10°C to 40°C).

When to Use / Replace?

Use every oil change or every 8,000-10,000 km to maintain clean fuel system performance. Ideal for vehicles over 50,000 km or showing signs like rough idling, smoke, or sluggish acceleration. Replace treatment at these intervals to prevent deposit buildup.

Frequently Asked Questions

Can I use this in any diesel engine?
Yes, it's safe for all diesel vehicles including cars, vans, and trucks. Pour the full 400ml bottle into your fuel tank before or after filling up.

How soon will I notice results?
Most drivers feel improved power and smoother running after one tankful, around 500-1,000 km of driving.

Is it compatible with modern diesel systems?
Absolutely, the advanced formula protects injectors and common rail systems without harming sensors or filters.