I put it in with a half tank still in the gas tank then filled up will that effect how well it works?

This Rislone stuff works REALLY well, especially if you've never used a fuel system cleaner to clean your fuel lines & intake. To get the maximum cleaning effect, you should run your tank down to 1/5 of a tank, and THEN put in the whole bottle and drive your car around until you get down to only 25 miles left and THEN, fill up to ONLY a 1/2 tank. This is my only "system" and it's not what they say to do on the bottle. In essence, when you put the bottle in, with 1/2 a tank and THEN, filled up.....you just diluted the strength of that 1 x bottle, by adding all the extra fuel. Try doing what I suggested and it will clean your fuel lines out very very well plus any carbon buildup within your intake or combustion chamber. Good Luck.

How does this work in a 2 stroke outboard boat engine?

Thank you for your question, and for considering using Rislone Gasoline Fuel System Treatment (part number 4700) in your 2 stroke outboard motor. This product was developed for use in the automotive sector, and has not been tested for use in marine applications. We sincerely appreciate your interest in this product, but are not able to recommend you use it for this type of application. If you have any other questions or we may be of further assistance, please feel free to contact our Tech Support Team at 1-800-345-6572. We are here to assist you Monday through Friday, from 8 am to 5 pm Eastern.

how come i was charged tax on a fuel treatment additive being sold by amazon...but not on other items being sold by other sellers

From my understanding it’s because the seller is in your state. When you buy product from seller or of state there are no taxes. That’s why the government is trying to pass new laws to be able to tax the products.

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

المساعدة تتبع الطلب

الحساب عربة التسوق

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

المساعدة تتبع الطلب

الحساب عربة التسوق

Rislone GAS FUEL SYSTEM TREATMENT

Product ID: 376323820

Details

Brand
Rislone
Global Trade Identification Number
Has liquid contents
Yes
Item weight
1.09 Pounds
Unit count
16.9 Fluid

⚡boosts octane & power

⛽6-in-1 fuel system treatment

🛠️cleans & lubricates entire fuel system

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

E£ 6594

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

Secure transaction

Description

⛽ Unlock peak engine performance & never settle for less!

LONG TERM PROTECTION - Regular use reduces fuel system wear and costly emission repairs
ALL IN ONE FUEL SAVIOR - Combines injector cleaner, lubricant, stabilizer, dry gas, treatment & octane booster in one bottle
UNIVERSAL COMPATIBILITY - Works flawlessly with unleaded, oxygenated, E85, ethanol fuels & all engine types
POWER MILEAGE MAXIMIZER - Boosts octane for enhanced engine power and improved fuel economy
ENGINE SMOOTHNESS ENHANCER - Eliminates noisy injectors, rough idling, and hard starts for a seamless drive

Rislone Gas Fuel System Treatment is a powerful 6-in-1 formula that cleans, lubricates, stabilizes, and boosts your fuel system’s performance. Compatible with all gasoline types and engine models, it enhances power, mileage, and engine smoothness while protecting against wear and costly repairs.

Specifications

ASIN	B008FRISTA
ASIN	B008FRISTA
Best Sellers Rank	#24,016 in Automotive ( See Top 100 in Automotive ) #56 in Automotive Fuel System Cleaners
Brand Name	Rislone
Container Type	Bottle
Contains Liquid Contents?	Yes
Customer Reviews	4.6 4.6 out of 5 stars (1,200)
Customer reviews	4.6 4.6 out of 5 stars (1,200)
Global Trade Identification Number	00078615047000
Is Discontinued By Manufacturer	No
Item Weight	1.09 Pounds
Item model number	4700
Model Number	4700
Part Number	4700
Product Dimensions	8.13 x 9.14 x 21.34 cm; 494.42 g
UPC	078615047000
Unit Count	16.9 Fluid Ounces

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

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks 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.

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

E£ 6594

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Fatima A.

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

3 days ago

View all Trustpilot reviews