Liqui Moly Diesel Additive - 1L

It is recommended for routine preventative maintenance. Check the product label for specific usage intervals, but often it's recommended every few thousand kilometers or as a preventative measure during fuel fill-ups.

This additive is primarily for preventative maintenance and cleaning. For severely contaminated systems, professional cleaning may be required in addition to using the additive.

Yes, it is formulated for all diesel engines, including modern common rail and pump-injector systems. It is also safe for use with biodiesel blends up to B7.

When stored correctly in its original container, the additive typically has a shelf life of several years. Refer to the manufacturing date on the bottle if available.

While its primary function is to clean and protect, a cleaner fuel system can contribute to improved fuel efficiency by ensuring optimal combustion.

It is generally not recommended to mix different fuel additives simultaneously. Use one additive at a time unless specifically advised otherwise by the manufacturers.

The additive may have dislodged existing deposits. Check and potentially replace the fuel filter if the issue persists.

Ensure the correct dosage was used and that the issue is indeed fuel contamination and not another mechanical problem. Allow more time for the additive to circulate thoroughly.

This can happen with additives. Shake the bottle vigorously before use to ensure a homogeneous mixture.