Q:

What are the effects of ethanol gas on the engine of a car?

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Quick Answer

Ethanol gas provides high quality, high octane to ensure high car engine performance and reduced emissions. Ethanol also prevents wintertime problems because it acts as a gas-line antifreeze. It therefore comes in handy for drivers living in cold weather climates because they don’t need to buy de-icers to prevent water from freezing in their gas lines. However, gasoline that contains 15 percent ethanol causes more harm to the engine than was once thought.

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Full Answer

Increasing ethanol content from the recommended 10 percent to 15 percent has a myriad of negative effects including erratic fuel level indicators, swelling of fuel system components and faulty check-engine lights among other problems.

When ethanol was first introduced, some car engines experienced deterioration of metal and rubber-like parts in fuel components. These fuel components were later upgraded to make them compatible with ethanol gas.

Trillions of miles have been driven on ethanol-driven engines since the early 1980s. Several teams on national and international racing competitions have relied on ethanol gas because of its outstanding performance. Currently, nearly all gasoline sold in America contains at least 10 percent ethanol.

Ethanol fuels are currently approved under the warranty of auto manufacturers marketing cars in the United States. Some manufacturers even recommend ethanol because of its clean burning benefits. Currently, all mainstream manufacturers allow the use of gasoline blended with up to 10 percent ethanol in their products.

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