Purpose and Specifications

SONAX Diesel System Cleaner 250ml is a premium German-made fuel additive designed to clean your diesel engine's fuel system from top to bottom. It removes tough deposits from injectors, intake valves, combustion chambers, and piston areas for smoother operation and better power.

• Cleans entire fuel system: Targets injectors and combustion chambers to restore peak performance.
• Boosts fuel efficiency: Optimizes combustion to save diesel and cut costs on every tank.
• Reduces smoke and emissions: Promotes cleaner burn for less exhaust haze and better air quality.
• Protects against corrosion: Neutralizes acidic water and prevents wax buildup in cold weather down to 0°C.
• Volume: 250ml bottle treats 40-60 liter diesel tanks.
• Shelf life: 5 years from manufacture date (check bottom of can).

Safe for all diesel engines, including modern ones with emission controls. Use every second tank (about 10,000 km or 6 months) for maintenance, or every tank if noticing rough idle or power loss.

When to Use / Replace?

Add one 250ml bottle to a full 40-60L diesel tank, shake well, then drive normally. Effects kick in after 100-200 km as it circulates and cleans. Ideal for preventive care every 10,000 km or 6 months, or immediately if your engine feels sluggish, smokes more, or guzzles extra fuel. Repeat as needed—no over-treatment risk.

FAQ

Q: How often should I use SONAX Diesel System Cleaner?
A: Every second full tank (around 10,000 km or 6 months) keeps things clean; use every tank for heavy deposits or poor performance.

Q: Is it safe for my diesel engine?
A: Yes, fully compatible with all diesel engines and emission systems—protects parts without harm.

Q: When will I notice results?
A: Improved smoothness and power after 100-200 km of normal driving.