--- product_id: 9279885 title: "Diesel Fuel Treatment PRI 16D" brand: "pri" price: "£31.27" currency: GBP in_stock: true reviews_count: 8 category: "Pri" url: https://www.desertcart.co.uk/products/9279885-diesel-fuel-treatment-pri-16d store_origin: GB region: United Kingdom --- # Boosts fuel efficiency +10% Enhances engine performance & longevity Cuts smoke & soot emissions by 30% Diesel Fuel Treatment PRI 16D **Brand:** pri **Price:** £31.27 **Availability:** ✅ In Stock ## Summary > ⛽ Power up your diesel, power up your day! ## Quick Answers - **What is this?** Diesel Fuel Treatment PRI 16D by pri - **How much does it cost?** £31.27 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/9279885-diesel-fuel-treatment-pri-16d) ## Best For - pri enthusiasts ## Why This Product - Trusted pri brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Pros:** Top-rated (#188 Fuel Additives) with 4.7-star user approval - • **Maximize Every Drop:** Super concentrated formula unlocks peak diesel & kerosene power - • **Engineered for Endurance:** Industrial-strength chemistry protects and extends engine life - • **Fuel Stability Reinvented:** Keeps stored diesel fresh and ready—even after 2+ years - • **Cleaner Combustion, Cleaner Air:** Significantly reduces smoke and soot for a smoother ride ## Overview PRI 16D Diesel Fuel Treatment is a premium, super concentrated additive designed to enhance diesel and kerosene fuels. It improves fuel efficiency, boosts engine performance, reduces harmful emissions, and stabilizes stored fuel for long-term use. Trusted by professionals and highly rated by users, it ensures your engine runs cleaner, stronger, and longer. ## Description PRI-D DIESEL FUEL TREATMENT 16 OZ. BOTTLE. PRI-D IS A SUPER CONCENTRATED, COMPLETE FUEL TREATMENT THAT IMPROVES ALL DIESEL FUELS AND KEROSENE, ENABLING THEM TO PERFORM TO MAXIMUM POTENTIAL. PRI-D'S INDUSTRIAL STRENGTH, ENHANCED THERMAL STABILITY CHEMISTRY REACTS WITH FUEL UPON CONTACT, AND PROVIDES MULITPLE BENEFITS: * ENGINES PERFORM BETTER AND LAST LONGER * INCREASED POWER AND FUEL ECONOMY Replaces: STIHL 1123-195-0400 Review: A must have! - I have a 30 gallon storage tank for diesel for my tractor and this is a must have. I also use the same brand that’s for gasoline for my tank that fuels my lawnmower. I’ve personally used diesel that was well over 2 years old with this product and it runs just as good as if I’d bought the diesel that day. It’s much better than stabil because you can actually add it to fuel that’s already been in storage, and it’s still effective. With stabil, you must add it when you purchase your fuel. Review: TK - GREAT PRICE HAVE NOT TRY YET ## Features - Improves fuel efficiency - Better Mileage - Higher performance - #1 Diesel Stabilizer - Cuts Smoke & Soot ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0029012P6 | | Best Sellers Rank | #240,599 in Automotive ( See Top 100 in Automotive ) #179 in Fuel Additives | | Brand | PRI | | Customer Reviews | 4.7 4.7 out of 5 stars (91) | | Date First Available | May 7, 2009 | | Is Discontinued By Manufacturer | No | | Item Weight | 1.08 pounds | | Item model number | 117590 | | Manufacturer | OEM Replacement Parts | | Manufacturer Part Number | PRI 16D | | Model | PRI 16D | | Product Dimensions | 5 x 3 x 7.75 inches | ## Images ![Diesel Fuel Treatment PRI 16D - Image 1](https://m.media-amazon.com/images/I/81TSmfdhZIL.jpg) ## Questions & Answers **Q: how many gallons does a 16 oz. bottle treat?** A: I think it treats 250 gallons but the products website has detailed info and is a good read. I love the pre-g for gas. I don't run the truck for weeks at a time so it is good insurance. The pre-g refreshes and keeps gas for at least 3-4 years. Refreshes winter gas. So far I like it. I hope that helps. Good luck **Q: What is the shelf life of both the gas and diesel product?** A: Well that question depends on a couple factors. One, your location, I've found that the closer you are to sea level the less condensation and breakdown occurs. Second, how you store it, say jugs or a tank in the ground. The fuel itself....gas, figure a year, possibly more - untreated. Diesel, a couple years, again, untreated. PRI-D and G, keeps that breakdown from happening. Remember with diesel, if its been sitting for a long time to filter it, it at times has the capacity to grow slime. Just use a nylon knee high, that works well. Hope this helps some. **Q: Is this good for storing diesel over the winter. Does it stop algae and other diesel storage problems?** A: I add it to my 80 gallon tank in my shed as I fill it. I use maybe 25 gallons a year. I haven’t had algae problems but, the biggest thing is moisture - if you keep the water out of the fuel - you’ll be good. I also add lubricity & cetane boost. **Q: if u over fill with this product,,, any issues?** A: Depends on how much you overfull, say a lot, like 2 or 3 times the amount. All you need to do before you use it is cut it with more untreated fuel. Hope this helps some. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A must have! *by M***E on July 10, 2025* I have a 30 gallon storage tank for diesel for my tractor and this is a must have. I also use the same brand that’s for gasoline for my tank that fuels my lawnmower. I’ve personally used diesel that was well over 2 years old with this product and it runs just as good as if I’d bought the diesel that day. It’s much better than stabil because you can actually add it to fuel that’s already been in storage, and it’s still effective. With stabil, you must add it when you purchase your fuel. ### ⭐⭐⭐⭐⭐ TK *by T***K on November 7, 2025* GREAT PRICE HAVE NOT TRY YET ### ⭐⭐⭐⭐⭐ Pleased *by D***S on July 5, 2025* Seems to keep this old truck running smoothly ## Frequently Bought Together - Diesel Fuel Treatment PRI 16D - PRI - PRI-16-G -G Fuel Stabilizer - Lubricity - Stability gasoline Treatment 16Oz - PRI CP123 G Gasoline Treatment - 16 oz. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/9279885-diesel-fuel-treatment-pri-16d](https://www.desertcart.co.uk/products/9279885-diesel-fuel-treatment-pri-16d) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-12*