ImageBuilders
07-25-2007

You can improve your gas mileage by around 3.3 percent by keeping your tires inflated to the proper pressure. Under-inflated tires can lower gas mileage by 0.4 percent for every 1 psi drop in pressure of all four tires. Properly inflated tires are safer and last longer.

  Fuel Economy Benefit:
up to 3%
  Equivalent Gasoline Savings:
up to $0.10/gallon
 
 

tire pressure

Use the Recommended Grade of Motor Oil

You can improve your gas mileage by 1-2 percent by using the manufacturer's recommended grade of motor oil. For example, using 10W-30 motor oil in an engine designed to use 5W-30 can lower your gas mileage by 1-2 percent. Using 5W-30 in an engine designed for 5W-20 can lower your gas mileage by 1-1.5 percent. Also, look for motor oil that says "Energy Conserving" on the API performance symbol to be sure it contains friction-reducing additives.
  Fuel Economy Benefit:
1-2%
  Equivalent Gasoline Savings:
$0.03-$0.06/gallon

 

Note: Cost savings are based on an assumed fuel price of $3.22/gallon.

oil specs

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