Use octane called for by the manufacturer. Check your vehicle owner's manual. If your vehicle does not require premium or mid-grade fuel, purchase less expensive, regular unleaded gas. Motorists can save hundreds of dollars over time by not springing for extra octane.
Keep tires inflated at the proper pressure. Under inflated tires are a safety hazard and can cut fuel economy by as much as 2 percent per pound of pressure below the recommended level.
Moving components should be properly lubricated and ignition and emission systems operating properly. This will help your vehicle achieve maximum fuel economy and extend its useful life.
Don¿t race a cold engine to warm it up. Avoid extended idling to warm up the engine. Start driving as soon as the engine is started but avoid rapid acceleration.
Use air conditioning only when needed. Air conditioning dramatically reduces fuel economy. Most air conditioners have an "economy" setting that allows the circulation of unchilled air.
Spark plugs must be in good condition. Some will last for 100,000 miles, but many need to be replaced more often.
Check the air filter twice a year, or more often in dusty conditions. A dirty air filter increases fuel consumption and can cause poor performance.
Take care of car-care "incidentals" that can affect fuel use. For example, a defective radiator thermostat can waste gas by extending the engine¿s warm-up time or decreasing the engine's operating temperature. A stuck brake caliper can create drag, which also wastes fuel.
Make sure a replacement gas cap is the right one for your car. A poorly fitting cap can cause engine problems.
Remove snow tires during good weather seasons; traveling on deep tire tread really robs fuel!
Change your oil when you tune-up your car, and use the weight recommended by the manufacturer. Oil that is too heavy forces the engine to waste fuel in overcoming the oil¿s resistance, and overly-thin oil does not adequately protect your engine.
Wheels need to be properly aligned to prevent drag and shortened tire life.
