Question 1

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

Accepted Answer

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.

Question 2

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

Accepted Answer

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.

Question 3

Do you pour in the whole bottle? I have a 1998 vw jetta 2.0

Accepted Answer

Yes the entire bottle

Question 4

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

Accepted Answer

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.

ASIN	B008FRISTA
Best Sellers Rank	#17,962 in Automotive ( See Top 100 in Automotive ) #31 in Fuel Additives
Brand Name	Rislone
Cleaning Agent Formulation	Detergent, Solvent
Container Type	Bottle, Can
Customer Reviews	4.6 4.6 out of 5 stars (1,538)
Global Trade Identification Number	00078615047000
Included Components	Rislone Gas Fuel System Treatment
Item Form	Liquid
Item Type Name	Rislone Hy-per Fuel Complete Fuel System Cleaner Gas
Item Volume	16.9 fluid ounces
Item Weight	1.1 pounds
Manufacturer	Rislone
Model Number	4700
Number of Items	1
Part Number	4700
Scent	Unscented
Size	16.9 Fl Oz (Pack of 1)
Special Features	Fuel System Cleaner
Specific Uses For Product	Fuel System Cleaner
Surface Recommendation	Metal, Plastic
UPC	078615047000
Unit Count	16.9 Fluid Ounces
Warranty Description	No

Complete Fuel System Cleaner

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