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.

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Fuel Your Drive! 🚗✨

SMOOTH OPERATOR - Say goodbye to rough idles and hello to seamless drives.
ULTIMATE FUEL CARE - Comprehensive cleaning for a healthier fuel system.
MAXIMIZE YOUR MILEAGE - Experience enhanced fuel economy with every drop.
SAVE MORE AT THE PUMP - Reduce fuel costs while enjoying a smoother ride.
POWER UP YOUR PERFORMANCE - Elevate your engine's power and responsiveness.

Rislone GAS FUEL SYSTEM TREATMENT is a powerful 6-in-1 formula designed to clean, lubricate, and enhance your fuel system. It improves octane levels, boosts engine performance, and promotes better fuel economy, ensuring a smoother and more efficient driving experience.

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