Purpose and Specifications

LIQUI MOLY Speed Tec Diesel 250ml is a high-performance fuel additive designed to clean your diesel injection system and boost acceleration, especially during everyday partial load driving like city commutes. One 250ml can treats up to 70 liters of diesel fuel, mixing automatically for easy use every time you refuel.

• Cleans injection system: Removes deposits for smoother fuel flow and better combustion
• Improves acceleration: Notice quicker throttle response and stronger performance
• Reduces friction: Lowers engine wear for longer life
• Safe for modern diesels: Works with particulate filters and catalytic converters, no metal compounds
• Better drivability: Quieter, smoother engine operation

Add every 2,000 km or monthly for ongoing benefits, with a shelf life of 3-5 years when stored cool and dry (0°C to 30°C).

When to Use / Replace?

Use Speed Tec Diesel at the first sign of sluggish acceleration, rough idling, or poor throttle response in your diesel engine. Ideal for regular maintenance every 2,000 km or before long trips to keep fuel system clean. Replace the additive treatment every tank fill-up (up to 70 liters) or monthly to maintain peak performance; no need for professional service unless deposits are severe.

FAQ

Q: How often should I add LIQUI MOLY Speed Tec Diesel?
A: Add one 250ml can every 2,000 km or per 70-liter tank for consistent cleaning and acceleration gains.

Q: Is it safe for my DPF and catalytic converter?
A: Yes, fully tested and suitable for diesel particulate filters and catalytic converters.

Q: Can I use it in biodiesel blends?
A: Absolutely, compatible with all conventional diesel and biodiesel fuels.