Howes Diesel Treat Anti-Gel & Conditioner - 1 Quart (32 oz) - Treats 160 Gallons - 103062
Howes Diesel Treat Anti-Gel & Conditioner - 1 Quart (32 oz) - Treats 160 Gallons - 103062
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Keep your rig running through the harshest winters with Howes Diesel Treat Anti-Gel & Conditioner.
Howes Diesel Treat is the industry's most trusted winter additive, specifically engineered to prevent fuel gelling in extreme cold. By lowering the Cold Filter Plugging Point (CFPP) by an average of 20 degrees, it ensures reliable starts and smooth operation. Backed by the famous "You Go or We Pay the Tow" guarantee, Howes is the ultimate insurance policy for your diesel engine.
The Howes Advantage
- Advanced Anti-Gel: Prevents diesel fuel from gelling and eliminates ice crystals that clog filters.
- Water Management: Safely removes water from fuel system without using harmful alcohols or solvents.
- High Performance: Increases power and improves fuel economy while cleaning and lubricating fuel injectors.
- Broad Compatibility: Safe for all diesel engines, including those with DPF filters, and effective in biodiesel blends up to B-20.
- Warranty Safe: Contains no alcohol, making it 100% safe for your engine's fuel system and manufacturer warranty.
Specifications
Treatment Instructions
- Winter Blend: Use 1 quart for every 160 gallons of fuel when temperatures are below 0°F.
- Regular Maintenance: Use 1 quart for every 320 gallons to clean injectors and add lubricity.
- For best results, add Diesel Treat to the tank before fueling to ensure proper mixing.
- Safe for use in any diesel engine, including tractors, pickups, and heavy-duty trucks.
Howes Lubricants — Testing the Limits Since 1920.

Frequently Asked Questions
How long does it take for my order to ship?
Orders are processed within 24–48 hours (business days). You’ll receive a tracking number by email once your package is on the way.
What shipping carrier do you use?
We ship through the United States Postal Service (USPS). Delivery times vary depending on your location and the service chosen at checkout.
Can I return an item if I change my mind?
Yes, returns are accepted within 14 days as long as the product is unopened and in its original packaging. Customers are responsible for return shipping and a restocking fee applies.
Do you offer local delivery or pickup?
Yes, local delivery is available within 20 miles of Merrimack, NH on qualifying orders. Contact us for details and scheduling.
Are all products covered by a warranty?
Many products include manufacturer warranties. Warranty terms vary by brand, so please refer to the product packaging or contact us for specifics.