LIQUI MOLY Pro-Line Diesel Cleaner - 500mL - 6 Pack

LIQUI MOLY Pro-Line Diesel Cleaner is a concentrated fuel additive that cleans the injection system and combustion chamber of diesel engines, removing deposits to restore power, smooth running, and efficient combustion. It protects the fuel system against corrosion and is safe for diesel particulate filters. Sold as a case of six 500 mL cans.

Specifications

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy