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| States Lettered A-M |
| Alabama (AL) | 1% or higher |
| Alaska (AK) | Always Labels |
| Arizona (AZ) | 1% or higher |
| Arkansas (AR) | 1.5% or higher |
| California (CA) | Always Labels |
| Colorado (CO) | 2% or higher |
| Connecticut (CT) | 1% or higher |
| Delaware (DE) | 1.5% or higher |
| Florida (FL) | Always Labels |
| Georgia (GA) | 1.5% or higher |
| Hawaii (HI) | 1% or higher |
| Idaho (ID) | 1% or higher |
| Illinois (IL) | 1% or higher |
| Iowa (IA) | 1% or higher |
| Louisiana (LA) | 1% or higher |
| Maine (ME) | Always Labels |
| Massachusetts (MA) | 1% or higher |
| Mississippi (MS) | 1% or higher |
| Montana (MT) | 1.5% or higher |
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| States Lettered N-Z |
| Nebraska (NE) | 1% or higher |
| New Mexico (NM) | 1% or higher |
| New York (NY) | 1% or higher |
| North Dakota (ND) | 1% or higher |
| Oklahoma (OK) | 1% or higher |
| Oregon (OR) | 1.5% or higher |
| Pennsylvania (PA) | Always Labels |
| Rhode Island (RI) | 1% or higher |
| South Carolina (SC) | 1.5% or higher |
| South Dakota (SD) | 2% or higher |
| Tennessee (TN) | 1.5% or higher |
| Texas (TX) | 1% or higher |
| Utah (UT) | 1% or higher |
| Vermont (VT) | 1.5% or higher |
| Virginia (VA) | 1% or higher |
| Washington (WA) | Up to 10% |
| West Virginia (WV) | 1.5% or higher |
| Wisconsin (WI) | Always Labels |
| Wyoming (WV) | Labels "gasohol" |
Not sure if you use gasoline or ethanol based gas (E10 or 10% ethanol 90% gasoline)? E3 is here to break it down for you.
Ethanol laws vary state to state, and some times it can be difficult to know what you are pumping into your tank.
The chart to the right represents all 50 states and their requirement, or lack there of, to post fuel contents at gas stations. The majority of the states must label if the ethanol content is above a stated percentage, while some have set no requirement in regards to labeling. Labels can be seen posted on gas station fuel pumps.
* States not listed to the right, currently do not require labeling.
Ever state currently sells some form of ethanol at their gas stations. Pumps which currently do not have ethanol added, will most likely be required to do so in the near future. As of January 2008, three states (Missouri, Minnesota, Hawaii) require ethanol to be blended with all gasoline motor fuel.
For more information on a State by State guide of ethanol laws, visit the American Coalition for Ethanol.
Ethanol and your Vehicle
While ethanol is in fact a cleaner burning fuel than gasoline, there are several issues linked to ethanol fuel. Fuels with more than 10% ethanol are not compatible with non E85 ready fuel system components and may cause corrosion of iron components. Ethanol fuel can negatively affect electric fuel pumps by increasing internal wear, cause undesirable spark generation, and is not compatible with capacitance fuel level gauging indicators and may cause erroneous fuel quantity indications in vehicles that employ that system. It is also not always compatible with marine craft, especially those that use fiberglass fuel tanks. Ethanol is also not used in aircraft for these same reasons.
When compared to conventional gasoline, E10 fuel (10% ethanol and 90% gasoline) produces roughly 3 to 4% less in fuel economy.
 By using our Ethanol Blend product, the abrasiveness of ethanol is greatly reduced, minimizing and often eliminating these issues. Our E10 specific blend also increases your fuel mileage an average of 24%.
Our All-in-One blend, made for conventional gasoline, increases fuel economy 10 to 37%.
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