• What is ethanol, and ethanol-blended fuel?
• Will ethanol work in fuel-injected engines?
• Does ethanol lead to plugged fuel filters?
• What care should be given to a car not driven in a long time?
• How long does it take to check my transmission?
• What type of transmission fluid should I use in my car?
• Is changing the oil & oil filter really important?
• On a long trip what maintenance should be done?
• Does using air-conditioning affect my fuel economy?
• How do I use antilock brakes in an emergency?
• How much air should be put in tires?
• When stopped for extended periods should I shut off my engine?
• My check engine, transmission or overdrive light is on or flashes?
• Is changing my air filter important?
• How do I clean dirty battery terminals?
• Can spark plugs last 100,000 miles?
• How often should I wash & wax my car?
• How do I know I will not be overcharged for my repair?

What is ethanol & ethanol-blended fuel?

Ethanol is highly refined beverage (grain) alcohol, approximately 200 proof, and can be made from natural products such as corn, sugar, and wheat. Ethanol that is used for fuel has been denatured with hydrocarbon, rendering it unsafe to drink.

Ethanol-blended fuel is a mixture of ethanol and unleaded gasoline. A mixture of 10% ethanol with 90% unleaded gasoline is known as E10 (E for ethanol, and 10 for 10%). Automobiles that normally use unleaded gasoline for fuel can also run using E10 fuel. Another type of ethanol-blended fuel is E85. E85 refers to a mixture of 85% ethanol and 15% unleaded gasoline.