Purpose and Specifications

LIQUI MOLY Diesel Smoke Stop (5180) is a diesel fuel additive engineered to reduce soot emissions and improve engine cleanliness. This premium additive accelerates soot combustion in your diesel engine, cutting exhaust smoke and harmful emissions while eliminating unpleasant diesel odors.

Key Benefits:

• Reduces visible exhaust smoke and soot emissions immediately after adding
• Keeps fuel injectors clean and prevents needle seizing, avoiding costly repairs
• Eliminates diesel knocking for smoother engine operation
• Protects against rust and corrosion in the fuel system
• Improves overall engine performance and longevity
• Safe for all diesel engines: passenger cars, commercial vehicles, buses, agricultural, and stationary engines

How to Use: Add 150 ml of Diesel Smoke Stop to every 50 liters of diesel fuel (ratio 1:333). Pour directly into the fuel tank before refueling. For best results, add with every fill-up. The additive is self-mixing and takes effect immediately.

When to Use / Replace?

Use every time you refuel for continuous engine protection and optimal performance. One 150 ml bottle treats 50 liters of fuel. For a typical diesel vehicle consuming 50 liters monthly, one bottle lasts approximately one month. Continuous use prevents injector deposits and maintains engine efficiency over the vehicle's lifetime.

Frequently Asked Questions

Q: Will this additive damage my engine or fuel system?
A: No. Diesel Smoke Stop contains no heavy metals and is compatible with all commercially available diesel fuels and fuel system components. It's been tested safe with catalytic converters and turbochargers.

Q: How quickly does it work?
A: The additive becomes fully effective immediately after adding to your fuel tank. You'll notice reduced smoke and smoother engine operation from your next drive.

Q: Can I use this in older diesel engines?
A: Yes. Diesel Smoke Stop is formulated for all diesel engines, including older passenger cars, heavy commercial vehicles, agricultural equipment, and stationary diesel engines.