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?

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.

How to use this ? Can I just put this to the fuel tank ?

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.

Does this work in small gas engines?

What do u mean by small gas engines? Im running a 1500cc engine and works well with it. Is this small enough?

Does MaxClean come with the application funnel for capless fuel tanks like some of their other products?

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.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce

Product ID: 1290602

Details

Brand
Royal Purple
Contains Liquid Contents
Yes
Item Weight
1.25 Pounds
Number of Items
1
Unit Count
1.0 Count

⛽3.2% improved fuel economy

🌿Up to 18% emission reduction

🚀2.6% horsepower boost

⚙️3-in-1 fuel additive

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 28.66

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Description

🚗 Maximize your engine’s potential—clean, boost, and save like a pro!

HORSEPOWER UPGRADE - Feel the 2.6% horsepower gain that puts you ahead on the road
TRIPLE ACTION POWER - Cleans injectors, carburetors & combustion chambers for peak engine health
FUEL ECONOMY BOOSTER - Unlock an average 3.2% increase in miles per gallon—save more on every drive
UNIVERSAL COMPATIBILITY - Works seamlessly with gasoline, diesel, ethanol blends & biofuels—future-proof your ride
ECO FRIENDLY PERFORMANCE - Reduce harmful emissions by up to 18% and drive cleaner with confidence

Royal Purple Max-Clean is a premium 3-in-1 fuel system cleaner and stabilizer designed to enhance engine performance by cleaning critical fuel components, improving fuel economy by 3.2%, increasing horsepower by 2.6%, and significantly reducing emissions. Compatible with gasoline and diesel engines, including ethanol blends and biofuels, it supports both 2-cycle and 4-cycle engines without harming emissions equipment. EPA and CARB compliant, it’s the trusted choice for professionals seeking reliable, eco-conscious vehicle maintenance.

Specifications

ASIN	B00B1VBQRS
Best Sellers Rank	#792 in Automotive ( See Top 100 in Automotive ) #6 in Fuel System Cleaners
Brand Name	Royal Purple
Contains Liquid Contents?	Yes
Customer Reviews	4.7 4.7 out of 5 stars (3,146)
Global Trade Identification Number	00641330117220
Included Components	Per Item Description
Item Type Name	Fuel System Cleand and Stabilizer
Item Weight	1.25 Pounds
Manufacturer	Royal Purple
Model Number	11722
Number of Items	1
Part Interchange Info	11722
Part Number	11722
Size	1 Count (Pack of 1)
UPC	641330117220
Unit Count	1.0 Count
Warranty Description	30 Days

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.