--- product_id: 3074755 title: "Summer+ Cetane Booster Diesel Fuel Additive, 1 Gallon + Pump Kit | Low-cost warm-weather formula with deposit control, lubricity and fuel-system protection" brand: "opti-lube" price: "$278.14" currency: USD in_stock: true reviews_count: 9 category: "Opti Lube" url: https://www.desertcart.us/products/3074755-summer-cetane-booster-diesel-fuel-additive-1-gallon-pump-kit store_origin: US region: United States of America --- # Boosts fuel economy up to 24 MPG Includes HDPE hand pump + 2x 4oz bottles Treats up to 2,560 gallons of diesel Summer+ Cetane Booster Diesel Fuel Additive, 1 Gallon + Pump Kit | Low-cost warm-weather formula with deposit control, lubricity and fuel-system protection **Brand:** opti-lube **Price:** $278.14 **Availability:** ✅ In Stock ## Summary > 🔥 Drive smarter, save bigger — summer fuel care that pays off! ## Quick Answers - **What is this?** Summer+ Cetane Booster Diesel Fuel Additive, 1 Gallon + Pump Kit | Low-cost warm-weather formula with deposit control, lubricity and fuel-system protection by opti-lube - **How much does it cost?** $278.14 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/3074755-summer-cetane-booster-diesel-fuel-additive-1-gallon-pump-kit) ## Best For - opti-lube enthusiasts ## Why This Product - Trusted opti-lube brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Injector Detox:** Cleans and prevents injector residue buildup, ensuring peak engine efficiency and lower emissions. - • **Summer-Ready Formula:** Specifically designed to combat thermal fuel degradation and price spikes during hot months. - • **Maximize Your Mileage:** Enhances fuel economy year-round for more miles per gallon and fewer pit stops. - • **Engine TLC in Every Drop:** Optimizes lubrication to protect your diesel engine from wear and tear under summer heat. - • **All-in-One Convenience Kit:** Comes with a durable hand pump and portable bottles for effortless on-the-go dosing. ## Overview Opti-Lube Summer+ Cetane Formula is a premium diesel fuel additive engineered to improve fuel economy, enhance engine lubrication, and clean fuel injectors. Designed specifically for summer conditions, it prevents thermal degradation and extends diesel storage life. The 1-gallon kit includes a hand pump and two 4oz bottles, treating up to 2,560 gallons of diesel for sustained performance and cost savings. ## Description Product description ENHANCES PERFORMANCE Whether during rain or shine, Opti-Lube Summer+ Cetane formula delivers. It works to improve the performance of your truck and enhance fuel mileage all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel. OPTIMAL LUBRICATION Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less. MADE ESPECIALLY FOR SUMMER Summertime is hard on your fuel. The higher temperatures can cause thermal degradation of the fuel much faster. Fuel prices tend to spike during the summer too, so you’re typically spending more when you’re at the pump. Our Summer+ Cetane is the best diesel fuel additive for warm weather and your wallet. It helps improve fuel mileage and helps prevent fuel breakdown. Review: Great for Summer Driving - Does great to keep the diesel engine clean and lubricated. There are other cheaper brands but this stuff works the best. Would recommend getting something to measure the amounts out. I just use a 4 oz measuring glass. Review: Improve my engine's running ability. - Improve my mileage on our trip to Missouri in my 1998 Dodge ram 2500 4x4 with a Cummins 5.9 with 4.10 gears. 24 miles to a gallon of diesel fuel. ## Features - MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less. - IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube Summer+ Cetane formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for summer driving. Comes with a hand pump and 2 empty 4-ounce bottles for on-the-go maintenance. - CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Summer+ Cetane formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape. - ENHANCES PERFORMANCE: Whether during rain or shine, Opti-Lube Summer+ Cetane formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel. - MADE ESPECIALLY FOR SUMMER: Summertime is hard on your fuel. The higher temperatures can cause faster thermal degradation of the fuel. Fuel prices tend to spike during the summer too, so you’re typically spending more when you’re at the pump. Our Summer+ Cetane is the best diesel fuel additive for warm weather and your wallet. It helps improve fuel mileage and helps prevent fuel breakdown. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00G6REAG6 | | Best Sellers Rank | #99,314 in Automotive ( See Top 100 in Automotive ) #86 in Diesel Additives | | Brand | Opti-Lube | | Brand Name | Opti-Lube | | Customer Reviews | 4.6 out of 5 stars 131 Reviews | | Flash Point | 74 Degrees Celsius | | Item Form | Liquid | | Liquid Volume | 1 Gallons | | Manufacturer | Opti-Lube | | Part Number | OPT-SP1 | | Recommended Uses For Product | Automotive | | Specific Uses For Product | Diesel Engines, Summer Use | ## Images ![Summer+ Cetane Booster Diesel Fuel Additive, 1 Gallon + Pump Kit | Low-cost warm-weather formula with deposit control, lubricity and fuel-system protection - Image 1](https://m.media-amazon.com/images/I/617R2PQeUOL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great for Summer Driving *by F***N on January 10, 2026* Does great to keep the diesel engine clean and lubricated. There are other cheaper brands but this stuff works the best. Would recommend getting something to measure the amounts out. I just use a 4 oz measuring glass. ### ⭐⭐⭐⭐⭐ Improve my engine's running ability. *by T***K on October 3, 2024* Improve my mileage on our trip to Missouri in my 1998 Dodge ram 2500 4x4 with a Cummins 5.9 with 4.10 gears. 24 miles to a gallon of diesel fuel. ### ⭐⭐⭐⭐⭐ Awesome stuff *by B***A on September 26, 2025* Awesome stuff! I didn’t even know the injectors were bad until I ran this feels like a completely new truck! Would not hesitate to buy it again. ## Frequently Bought Together - Opti-Lube Summer+ Cetane Formula Diesel Fuel Additive: 1 Gallon with Accessories (HDPE Plastic Hand Pump and 2 Empty 4oz Bottles) Treats up to 2,560 Gallons - Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive: 1 Gallon with Accessories (HDPE Plastic Hand Pump and 2 Empty 4oz Bottles) Treats up to 1,280 Gallons - Opti-Lube XPD All Seasons Diesel Fuel Additive: 1 Gallon with Accessories (1 Hand Pump & 2 Empty 8oz Bottles) (1 Gallon XPD with Hand Pump and Regular Accessory Bottles) --- ## 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.us/products/3074755-summer-cetane-booster-diesel-fuel-additive-1-gallon-pump-kit](https://www.desertcart.us/products/3074755-summer-cetane-booster-diesel-fuel-additive-1-gallon-pump-kit) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-12*