--- product_id: 737760946 title: "Royal Purple MAX-CLEAN Fuel Additive 20.1 fl oz (591 ml)" brand: "royal purple" price: "S$85" currency: SGD in_stock: true reviews_count: 6 url: https://www.desertcart.sg/products/737760946-royal-purple-max-clean-fuel-additive-20-1-fl-oz store_origin: SG region: Singapore --- # Royal Purple MAX-CLEAN Fuel Additive 20.1 fl oz (591 ml) **Brand:** royal purple **Price:** S$85 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Royal Purple MAX-CLEAN Fuel Additive 20.1 fl oz (591 ml) by royal purple - **How much does it cost?** S$85 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/737760946-royal-purple-max-clean-fuel-additive-20-1-fl-oz) ## Best For - royal purple enthusiasts ## Why This Product - Trusted royal purple brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 20oz 11722 ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00B1VBQRS | | Is Discontinued By Manufacturer | No | | Item Model Number | 11722 | | Manufacturer | ROYAL PURPLE | | Product Dimensions | 6.68 x 6.68 x 24.71 cm; 480 g | ## Product Details - **Brand:** Royal Purple - **Contains Liquid Contents:** Yes - **Global Trade Identification Number:** 00641330117220 - **Item Weight:** 1.25 Pounds - **Manufacturer:** ROYAL PURPLE - **Number of Items:** 1 - **Size:** 20オンス - **UPC:** 641330117220 ## Images ![Royal Purple MAX-CLEAN Fuel Additive 20.1 fl oz (591 ml) - Image 1](https://m.media-amazon.com/images/I/7178Kyc-yJL.jpg) ![Royal Purple MAX-CLEAN Fuel Additive 20.1 fl oz (591 ml) - Image 2](https://m.media-amazon.com/images/I/711r02FWmqL.jpg) ![Royal Purple MAX-CLEAN Fuel Additive 20.1 fl oz (591 ml) - Image 3](https://m.media-amazon.com/images/I/41JNMScCkTL.jpg) ## Questions & Answers **Q: my tank holds 33 gallons, would i have to fill it up only will 20 gallons after i pour in Max Clean or could i fill right up?** A: Put in a bottle & fill your tank 3/4 of the way up. That way you get the improved performance, but only have to buy one bottle. That's what I do as I have a 26 gallon tank. **Q: How to use this ? Can I just put this to the fuel tank ?** A: Dump it in the fuel tank and fill it up with gas. This large can will treat up to 20 Gallons. I use it in my motorcycle, so I just put a small amount in. It also has a fuel stabilizer in it which is good cause I don't ride the bike that often. **Q: Does this work in small gas engines?** A: What do u mean by small gas engines? Im running a 1500cc engine and works well with it. Is this small enough? **Q: Does MaxClean come with the application funnel for capless fuel tanks like some of their other products?** A: It does come with a plastic funnel that attaches to the bottle. Depends what fuel your vehicle takes if it will work or not if it's a caplesss filler neck vehicle tho. ## Customer Reviews ### ⭐⭐⭐⭐⭐ キャブレター *by on Reviewed in Japan October 27, 2024* 息つぎが改善され吹け上がりが良くなった。アイドリングが少し安定してる。キャブ車におすすめです♪ ### ⭐⭐⭐⭐⭐ Super producto para probar. *by on Reviewed in Mexico April 21, 2026* Es el producto tal cual lo solicité, aunque tardo un poco en llegar, el Royal Purple Max Clean me satisface tenerlo, ahora a probarlo. ### ⭐⭐⭐⭐⭐ Additive that actually improves Fuel Consumption *by on Reviewed in Australia April 28, 2026* This is most likely the best fuel additive I have ever used as far as actual real-world improvement in fuel consumption.I have a 10 years old diesel vehicle which has been slowly increasing in fuel consumption, so I purchased this item.I added the content into the fuel tank when there was about 1/4 a tank left and let it run down until as far as I was willing (about 50km left in the tank). The next fill up, I did not notice a very noticeable change, but from the next tank on, I have been getting 50-70km more out of each tank of fuel. For reference, my tank is 65L and I've been getting about 740km out of a tank. I generally do a lot of hilly 60km/h drive (50%). a little bit of town driving (probably about 20%) and a little bit of highway (20-30%). Now, after the treatment, using the same fuel, same driving pattern, I am getting approximately 800km out of a tank on average.I think I might buy another one and treat it again. It'll probably clean the system further and give me better results. ## Frequently Bought Together - Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce - Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz. - Royal Purple 01600 Purple Ice Super-Coolant Radiator Additive - 12 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.sg/products/737760946-royal-purple-max-clean-fuel-additive-20-1-fl-oz](https://www.desertcart.sg/products/737760946-royal-purple-max-clean-fuel-additive-20-1-fl-oz) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-10-18*