Purpose and Specifications

LIQUI MOLY 8344 Diesel Flow Fit is a premium diesel fuel additive from the Diesel fließ-fit line that keeps your diesel flowing smoothly even in extreme cold, down to -31 °C depending on fuel quality. This 150 ml bottle improves fuel flow and filtering, preventing wax crystal buildup that clogs filters and stops your engine in winter.

Key practical benefits include better cold starts, reliable winter operation, and protection for all diesel engines including those with particulate filters (DPF). Add one bottle to up to 45 liters of fuel for lasting effect up to 2,000 km. It's self-mixing, simple to use, and suitable for summer/winter diesel per DIN EN 590 standards.

When to Use / Replace?

Use before winter or in cold climates to secure operation down to -31 °C. Add every 2,000 km or at fuel filter changes for ongoing protection. Shelf life is typically 4-5 years unopened in a cool, dry place. Replace if fuel system shows poor cold flow or filter clogging.

• Can I use it year-round? Yes, it works preventively anytime, but shines in cold securing flow to -31 °C and protecting against corrosion.
• Is it safe for DPF and turbo diesels? Fully tested and safe for all modern diesel engines with DPF, turbos, and catalytic converters.
• How much fuel does 150 ml treat? Up to 45 liters, lasting 2,000 km for smooth performance and lower consumption.