Ethanol - gasoline mixture
Ethanol - gasoline mixture
Registered User
Joined: Dec 2005
Posts: 10,106
Likes: 5
From: Connecticut
Gasoline in CT contains 10% ethanol. This is known as gasohol or E10. For comparison, E85 contains 15% gasoline, 85% ethanol. I cannot find a gas station that doesn't supply this mixture in CT. Don't know if thats country wide or not.. I never pay attention when I fill up out of state. Anyway, I imagine your car will be fine if you need to use a blend, but with more ethanol, expect your performance and gas mileage to decrease.
Registered User
Joined: Oct 2000
Posts: 15,323
Likes: 28
From: Longmont, CO
From AHM Ownerlink:
The following are the EPA-approved percentages of oxygenates:
- ETHANOL (ethyl or grain alcohol): You may use gasoline containing up to 10% ethanol by volume.
- MTBE (Methyl Tertiary Butyl Ether): You may use gasoline containing up to 15% MTBE by volume.
- METHANOL (methyl or wood alcohol): Gasoline containing methanol is not common in North America. Your vehicle was not designed to use fuel that contains methanol. Methanol can damage fuel system components. This damage would not be covered under warranty.
Fuels that exceed the EPA's approved oxygenate percentages for conventional and reformulated gasolines must be clearly labeled on the pump. One example of such a fuel is "E85," which contains 85% ethanol. Do not use such fuels in your vehicle. These fuels will cause performance problems, and may damage your vehicle's engine, fuel system, and emission control system. This damage would not be covered under warranty.
- ETHANOL (ethyl or grain alcohol): You may use gasoline containing up to 10% ethanol by volume.
- MTBE (Methyl Tertiary Butyl Ether): You may use gasoline containing up to 15% MTBE by volume.
- METHANOL (methyl or wood alcohol): Gasoline containing methanol is not common in North America. Your vehicle was not designed to use fuel that contains methanol. Methanol can damage fuel system components. This damage would not be covered under warranty.
Fuels that exceed the EPA's approved oxygenate percentages for conventional and reformulated gasolines must be clearly labeled on the pump. One example of such a fuel is "E85," which contains 85% ethanol. Do not use such fuels in your vehicle. These fuels will cause performance problems, and may damage your vehicle's engine, fuel system, and emission control system. This damage would not be covered under warranty.
Registered User
Joined: Nov 2003
Posts: 1,729
Likes: 4
From: Magnolia, TX
From my 2004 owners manual:
pg100\Gasoline type- Your Honda is designed to operate on unleaded gasoline with a pump octane number of 91 or higher. Use of a lower octane gasoline can cause occasional metallic knocking noises in the engine and will result in decreased engine performance.
In addition, in order to maintain good performance, fuel economy, and emissions control, we strongly recommend, in areas where it is available, the use of gasoline that does NOT contain manganese-based fuel additives such as MMT. Use of gasoline with these additives may adversely affect performance, and cause the Malfunction Indicator Lamp on your instrument panel to come on. If this happens, contact your authorized Honda dealer for service. For further important fuel-related information, please refer to your Quick Start Guide.
Some gasoline today is blended with oxygenates such as ethanol or MTBE. Your vehicle is designed to operate on oxygenated gasoline containing up to 10% ethanol by volume and up to 15% MTBE by volume. Do not use gasoline containing methanol.
pg100\Gasoline type- Your Honda is designed to operate on unleaded gasoline with a pump octane number of 91 or higher. Use of a lower octane gasoline can cause occasional metallic knocking noises in the engine and will result in decreased engine performance.
In addition, in order to maintain good performance, fuel economy, and emissions control, we strongly recommend, in areas where it is available, the use of gasoline that does NOT contain manganese-based fuel additives such as MMT. Use of gasoline with these additives may adversely affect performance, and cause the Malfunction Indicator Lamp on your instrument panel to come on. If this happens, contact your authorized Honda dealer for service. For further important fuel-related information, please refer to your Quick Start Guide.
Some gasoline today is blended with oxygenates such as ethanol or MTBE. Your vehicle is designed to operate on oxygenated gasoline containing up to 10% ethanol by volume and up to 15% MTBE by volume. Do not use gasoline containing methanol.
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Registered User
Joined: Oct 2000
Posts: 15,323
Likes: 28
From: Longmont, CO
Ethanol does have less energy density than gasoline - so for a given amount of power, more fuel is needed. Hence, less "miles per gallon" - which the E85 website admits.
But power loss is not a given. With 100+ octane, the engine can run higher compression and more advanced timing, which will give you more power. Remember, E85 can only be used in engines specifically designed for it. Quite possibly, these engines can achieve more power when running on E85 than in gasoline.
But power loss is not a given. With 100+ octane, the engine can run higher compression and more advanced timing, which will give you more power. Remember, E85 can only be used in engines specifically designed for it. Quite possibly, these engines can achieve more power when running on E85 than in gasoline.
