--- product_id: 279344914 title: "Red Line 60103-2PK Complete SI-1 Fuel System Cleaner - 15 Ounce, (Pack of 2)" brand: "red line" price: "€ 97.05" currency: EUR in_stock: true category: "Red Line" url: https://www.desertcart.pt/products/279344914-red-line-60103-2pk-complete-si-1-fuel-system-cleaner store_origin: PT region: Portugal --- # 15 oz concentrated power cleans injectors & valves prevents corrosion & buildup Red Line 60103-2PK Complete SI-1 Fuel System Cleaner - 15 Ounce, (Pack of 2) **Brand:** red line **Price:** € 97.05 **Availability:** ✅ In Stock ## Summary > ⛽ Clean fuel, cleaner conscience—drive smarter, not harder. ## Quick Answers - **What is this?** Red Line 60103-2PK Complete SI-1 Fuel System Cleaner - 15 Ounce, (Pack of 2) by red line - **How much does it cost?** € 97.05 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/279344914-red-line-60103-2pk-complete-si-1-fuel-system-cleaner) ## Best For - red line enthusiasts ## Why This Product - Trusted red line brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **One-Tank Wonder:** Just one bottle per tank delivers nearly 100% cleaning efficiency—effortless and effective. - • **Trusted & Top-Ranked:** Rated 4.7 stars by thousands, a must-have for millennial pros who demand reliability. - • **Corrosion Shield Tech:** Advanced formula prevents rust and varnish, extending your engine’s lifespan. - • **Fuel Stability Booster:** Enhances gasoline stability to reduce gum buildup and keep your ride smooth. - • **Ultimate Fuel System Detox:** Powerful dual-temp detergents blast away deposits for peak engine performance. ## Overview Red Line 60103-2PK Complete SI-1 Fuel System Cleaner is a concentrated 15-ounce liquid additive designed to clean injectors, carburetors, valves, and combustion chambers. Featuring a powerful blend of high- and low-temperature detergents, it prevents corrosion and buildup, enhances fuel stability, and delivers nearly 100% cleaning efficiency with just one bottle per tank. Highly rated and trusted, this pack of two ensures your engine runs smoother and longer. ## Description Concentrated, detergent-based fuel additive cleans injectors, carburetors, valves and combustion chamber deposits with a concentrated blend of the most powerful high-temp and low-temp detergents available, 15 Ounce (2 Pack). ## Features - DESIGNED TO EXCEED EXPECTATIONS: Red line complete SI-1 fuel system cleaner treatment for cleaning and preventing corrosion in fuel systems - PERFORM AND PROTECT: Fuel additive cleans injectors carburetors valve and combustion chamber deposits with a powerful concentrated blend of high-temp and low-temp detergents - EFFICIENT FUEL BURN: Gas treatment that enhances gasoline stability while reducing the build up of gum and varnish formation - EASY TO USE: Use one bottle per tank for most effective treatment additive cleans nearly 100% efficiency in one treatment - 15 Ounce (2 Pack) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00NQB7OM2 | | ASIN | B00NQB7OM2 | | Best Sellers Rank | #744 in Automotive ( See Top 100 in Automotive ) #5 in Automotive Fuel System Cleaners | | Brand Name | Red Line | | Contains Liquid Contents? | Yes | | Customer Reviews | 4.7 4.7 out of 5 stars (2,905) | | Customer reviews | 4.7 4.7 out of 5 stars (2,905) | | Is Discontinued By Manufacturer | No | | Item Form | Liquid | | Item Volume | 15 Fluid Ounces | | Item model number | 5 | | Manufacturer | Red Line | | Manufacturer | Red Line | | Material Features | Unscented | | Material Type Free | en_AE | | Model Number | 5 | | Number of Items | 2 | | Package Dimensions | 25.8 x 17.1 x 6.8 cm; 900 g | | Part Number | 60103 | | Scent | Unscented | | Special Features | Concentrated | | Specific Uses For Product | Automotive Interior | | UPC | 737534816462 | | Unit Count | 2 Can | ## Product Details - **Brand:** Red Line - **Item form:** Liquid - **Material features:** Unscented - **Scent:** Unscented - **Specific uses for product:** Automotive Interior ## Images ![Red Line 60103-2PK Complete SI-1 Fuel System Cleaner - 15 Ounce, (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/612KJnNqPTL.jpg) ## Questions & Answers **Q: Can u detail the procedure how to use this product?** A: Hold bottle in left hand. with right hand, twist cap counter clockwise. Break foil seal on bottle. (if you smoke, put the cigarette out before proceeding further)open gas tank door. remove gas cap (place in a location you remember to reinstall later.)Pour contents into gas tank. Replace gas cap. Drive as normal and it will clean injectors up as you drive. Enjoy a beer (AFTER you drive with enough time in between to sober up.)Call the fellas up and stand around drinking beer while admiring a fine product from Redline. (PEA is the main thing you want to clean things up, which Redline and Techron have the most)//I hope that is detailed enough\\ **Q: Is this product better than the much cheaper STP fuel cleaner** A: if you buy cheap gas, you might need it. i get top tier fuel and never had the need for this. i tried it on a twice for a 17 y/o honda odyssey. did nothing. i always use top tier fuel. also honda V6 is a great motor, as is there 4 cyl so maybe no need for this unless you use cheap gas or have a man engine prone to injector issues **Q: Will this Redline product damage my 02 sensors with LONG TERM use? No one seems to address this issue.** A: Actually, notably, I put this product in a 1997 Toyota Camry a few years ago. The car was over 20 years old and had only had basic crap gasoline (not Top Tier and no fuel system cleaners) in it for its entire life. A few days after I added it, the check engine light DID come on and it WAS a broken O2 sensor. However, I'll do it again in a heartbeat, because a new O2 sensor was $13 and took 10 minutes to replace. So it seems it is possible that using this with an extremely crusty vehicle will cause an O2 sensor error/failure. But with long term use, certainly not. I have been using this in my 2016 Mazda 3 several times a year for 5+ years and it is running like the day I got it. **Q: diesel engine, LPG engine all use??** A: Definitely do NOT add this to a diesel or LPG fuel tank or anything else that isn't normal gasoline. However, as someone else said, they do make one for diesel engines. It is Red Line 60302. ## Frequently Bought Together - Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce (2 Pack) - Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037 - LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines Smoother Engine Performance, Less Friction & Lower Fuel Consumption 300 ml --- ## 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.pt/products/279344914-red-line-60103-2pk-complete-si-1-fuel-system-cleaner](https://www.desertcart.pt/products/279344914-red-line-60103-2pk-complete-si-1-fuel-system-cleaner) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-04*