Check the listing for details. Archoil Special Offer Kit - AR9100 + AR6400-D Diesel Fuel System Cleaner. Condition: New. Listed at 59.90 USD. ARCHOIL OFFICIAL EBAY ACCOUNT - 100% POSITIVE FEEDBACK - FAST AND FREE SHIPPINGARCHOIL AR9100 + 6400-D (For Diesel Vehicles)This kit offers BIG savings on buying each product separately AR9100 Friction Modifier (16oz)• Increases power and response• Reduces friction and provides anti-wear, extreme pressure and anti-corrosion protection• Reduces engine noise and vibration• Protects engine during cold starts• Cleans and prevents sludge/varnish deposits• Extends oil drain intervals• Fixes HEUI injector problems (Power Stroke and others) AR6400-D Diesel Fuel System Cleaner (12oz) Treats 40 Gallons• Optimized for diesel engines• Cleans injectors and injector tips• Removes turbo deposits• Reduces DPF deposits• Restores optimum power and fuel efficiency• Use every 3,000 - 5,000 Miles