ULTIMATE 3-STEP DIESEL KIT: Includes AR6400-D Diesel Fuel System Cleaner + AR6500 Diesel Treatment (40 oz) + AR9100 Friction Modifier (16 oz)
EASY TO USE: AR6400-D and AR6500 are diesel treatments, added directly to the fuel tank. AR9100 is an oil treatment, added to engine oil at your next oil change – no tools required
HOW IT WORKS (Clean → Maintain → Protect): Use AR6400-D first, then use AR6500 at every fill-up. Add AR9100 at your next oil change
FOR ALL DIESEL ENGINES: Suitable for all diesel vehicles and equipment, including modern HPCR systems
DIESEL ADDITIVE BENEFITS (AR6400-D + AR6500): Deep-clean then maintain the fuel system for smoother running and better response while controlling fuel soot and deposits over time
OIL ADDITIVE BENEFITS (AR9100): Reduce friction for smoother operation and anti-wear protection. Eliminates HEUI injector stiction (6.0/7.3L Power Strokes and others)
Shipping Information:
1. Delivery Locations: Stonereach Auto proudly ships to customers located in both United States. No matter where you are, we strive to bring the latest trends right to your doorstep.
2. Shipping Methods: We offer a variety of shipping options to suit your needs. You can choose from standard shipping, expedited shipping, and, in some cases, even same-day delivery, depending on your location.
Returns & Exchanges:
1. Hassle-Free Returns: We understand that sometimes a product might not meet your expectations. If you're not completely satisfied with your purchase, we offer hassle-free returns for eligible items.
2. Return Process: To initiate a return, log in to your Stonereach Auto account, go to the "My Orders" section, and select the order you wish to return. Follow the prompts to generate a return request.








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