is this one time use? do I need to add other things other then fuel and water before the test?

You can use it many times. It’s really easy to use Just add water to the water line mark the fuel on top of it. Shake for about 10 seconds and then let stand for about 10 seconds. You will have your result. Nothing else needed for this test.

How can a plastic bottle with just simple graduations cost so much? It cannot cost more than $0.35 a piece to make this thing.

The graduations are written on tape and then stuck on the bottle. I can see a price tag of maybe $3.95 not $14.95 like I paid. But it does work.

does this test diesel fuel?

No, it tests for alcohol percent in gasoline.

What if the gasoline your testing has sta-bil 22264 360 protection in it? will this still work?

I honestly can't say but I would think so. Google your best bet for a question like this

Rev X Super Tester Flex Fuel Ethanol E85 To E10

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

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€ 59.07

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Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

The SUPER TESTER Ethanol Testing Kit by Rev X Products is simply the Smartest, Easiest tool available to verify the percentage of damaging Ethanol Alcohol added to Gasoline. Over 95% of the Gasoline sold to the general public contains 10% or more Ethanol Alcohol. The goal of the EPA is to increase Ethanol Alcohol content in publicly used gasoline to 20% by the end of 2017. Most Vehicles that are Flex Fuel Compliant were designed to avoid the harmful side effects of Ethanol Alcohol at levels of 10% or less. The only way to truly protect your investment is to know if Ethanol Alcohol is present in the Gasoline you are purchasing and if so, at what percentage. The SUPER TESTER Ethanol Testing Kit is loaded with features that allow results to be had problem free in a matter of minutes such as

Specifications

ASIN	B073HLSVHX
Assembly Required	No
Best Sellers Rank	#242,099 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #2,421 in Car Engine & Engine Parts
Brand	REV X
Country of Origin	USA
Customer Reviews	4.7 4.7 out of 5 stars (2,375)
Date First Available	1 January 2011
Item Dimensions LxWxH	38 x 38 x 152 Millimeters
Item Weight	30 g
Item model number	ST0501
Manufacturer	REV-X
Manufacturer Part Number	ST0501
OEM Part Number	ST0501
Product Dimensions	3.81 x 3.81 x 15.24 cm; 30 g
Volume	4 Fluid Ounces

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