This specification covers nominally anhydrous denatured fuel ethanol intended for blending with unleaded or leaded gasolines for use as a spark-ignition automotive engine fuel.
Denatured fuel ethanol shall conform to the specified performance requirements for the following: ethanol content, methanol, solvent-washed gum, water content, denaturant content, inorganic chloride content, copper content, acidity, pHe, sulfur content, sulfate content, appearance, and specific gravity.
The only denaturants used for fuel ethanol shall be natural gasoline, gasoline components, or unleaded gasoline at the minimum concentration prescribed. Prohibited denaturants include methanol which does not meet the specified requirement, pyrroles, turpentine, ketones, and tars (high-molecular weight pyrolysis products of fossil or nonfossil vegetable matter). Sampling, containers, and sample handling techniques, and the test methods for determining conformance to the specified requirements are given.
This is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.
We often receive requests for names of independent fuel testing labs
when contaminated gasoline is suspected to be the cause for major damage or complete loss of engine. View List Below.
There are many small to large independent laboratories that can perform a wide range of tests that will determine the quality of gasoline, fuel and petroleum. Not all laboratories perform specialized ethanol and biodiesel testing.
Contact laboratory directly for further information and pricing. You should expect cost of private testing to be in range of several hundred to thousands of dollars. Usually a minimum of 1 pint to gallon of gasoline is required for testing to be performed.
Ethanol, biodiesel and renewable/alternative fuel testing is very specialized, and many fuel testing laboratories do not perform these tests on-site.
Many states have government-funded agencies with laboratory (usually within the Dept. of Agriculture, division of weights and measures), that will perform no-cost testing when contaminated gas was purchased from a public gas station.
Portable fuel testing equipment is available from Fuel-Testers Company, when you suspect gasoline contamination is due to excess water or alcohol, for under $25.00. Fuel-Testers Company is not an independent gasoline testing lab.
Ethanol alcohol is now blended into most gasoline sold at public pumps. Ethanol readily attracts/absorbs water into gas. Portable fuel testing kits are available - Check gas for alcohol or water contamination - Details.
ASTM Standards/Specifications for Ethanol Blends:
See ASTM D4806 - 08a Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel. See summary at bottom of page.
Common symptoms of excess alcohol or water in gas: Vapor lock or fuel starvation. Stalling, hesitation, inability to start engine. Corrosion and rusting of engine parts. Piston/bore failure through knock/pre-ignition. More...
Fuel-testers has provided this list as a courtesy to our customers and website visitors. We do not have an affiliation with any of the labs listed. Contact laboratory directly for information, pricing, company office locations and procedure for submitting fuel sample for testing.
Affordable, Low-Cost Portable Fuel Testing Equipment for Consumer and Business Use: