Doc's Diesel x Hot Shot's Secret Interval Fuel + The Diesel Treatment Pack

Regular price $37.99

Doc's Diesel & Hot Shot's Secret are partnering to bring their #1 Fuel Treatment to the Doc's Family with Interval Fuel Treatment, Powered By Hot Shot's Secret. For best results use in CONJUNCTION with Doc's Diesel The Diesel Treatment.

- Interval Fuel Treatment

- Cleans cylinders, fuel lines, Tank, and disperses water/moisture 
- Reduces need for DPF Regeneration Cycles up to 50%
- Improves Throttle Response & Power
- Protects against Rust & Corrosion, and stabilizes fuel
- Boosts Cetane up to 7 pts
- Fully Formulated to get rid of IDIDs 

Treatment Plan Interval Fuel Treatment: Use 8oz of Interval Fuel Treatment per 20 gallons of diesel fuel. Use once every 6,000 miles. Include in your schedule Doc's Diesel maintenance plan and in conjunction with Doc's Diesel The Diesel Treatment

- The Diesel Treatment

  • CETANE BOOST / for cold starting and combustion
  • INCREASES FUEL ECONOMY / enhances lubricity & Performance
  • CLEANS INJECTORS / Disperses water & prevents rust
  • TREATMENT PLAN Premium: 1oz/25 gallon or 16oz/400 gallons Performance: 2 oz/25 gallon or 16oz/200 gallons 

 The Doc’s Difference can now be experienced with THE DIESEL TREATMENT, a complete 6-in-1 performance fuel additive for diesel engines. Formulated with everything needed to improve today’s Ultra-Low Sulfur Diesel, The Diesel Treatment boosts cetane 7-points, improves fuel lubricity and cleans fuel injectors. We’re talking increased fuel economy, more power, better cold starts and better overall protection for your fuel system.

How much is shipping?

We offer Free Shipping over $99 on all orders within the contiguous United States. Expedited shipping is available for an additional charge. Alaska, Hawaii, and Canada will have shipping fees.

Where does Doc's Diesel Ship to?

We ship to the U.S. and Canada! For Canada orders, any taxes, duties, or customs fees are the responsibility of the buyer.

How long will it take to get my Doc's Diesel Filters?

We handle orders in 1-2 business days (Most of the time in less than 24 hours if ordered on a week day). Depending on location, U.S. orders will arrive between 3-5 business days from your order.

Canada orders typically arrive within 7-11 days.

Where is my order?

If you have not received your confirmation email us so we can get everything sorted out ASAP.

If you received a confirmation but no shipment email, we are still working on your order. Don't hesitate to email if you would like more information and we'd be happy to check on your order. Please Include your order # in the email.

For Tracking information, it will be in your shipment email. Check the tracking # first or the latest updates. Doc's Diesel, just like you are at the mercy of shipping companies after a shipment leaves our warehouse. If there's been an issue with shipment we will happilly work with you to figure out where the order is and what we can do to help. Once again you can reach out to sales@docsdiesel and include your order # in the email. Thank You.

Return / Refund

If you are unhappy with your purchase for whatever reason and it's within 30 days from your purchase you can return your diesel filters back to us. Item has to be in new condition. Email us and we will email you a return slip. Once filters are received, we will refund your money (minus price of return shipping)  within 2-4 business days. We will refund to your original form of payment. 

To start a return email

View Our Official Limited Warranty Policy

Thank You


Industry leading aftermarket diesel filters


Aftermarket Filters - OEM Form, Fit & Function.


Free shipping on all Continental USA orders over $99. Expedited Shipping Available.


If it doesn’t fit, we will offer you a replacement or a refund (*some conditions apply).