The fuel you put into your car has an effect on its environmental impact as well as its performance. Always use motor oil with the viscosity recommended for your vehicle to avoid increased friction in the engine’s moving parts, which can unnecessarily burn extra fuel. Changing your vehicle’s oil every three to five thousand miles maintains cleaner oil, which can avoid burning excess fuel and can make your car run more efficiently. Filling your gas tank with fuel grades higher than regular does not benefit your fuel mileage or engine performance, and higher grades pollute and cost more than regular unleaded gasoline. Being aware of what motor oil and fuel your vehicle requires to run properly and using only those types can prevent unnecessary pollution and fuel expenses. For further information, see:
http://eartheasy.com/move_fuel_efficient_driving.html
http://www.cartalk.com/content/guide-better-fuel-economy
http://eartheasy.com/move_fuel_efficient_driving.html
http://www.cartalk.com/content/guide-better-fuel-economy