Save Big on Fuel

Drive Sensibly
Aggressive driving wastes gas. It can lower your gas mileage by 33% at highway speeds and by 5% around town.
Fuel Economy Benefit: 5-33%
Equivalent Savings: $0.09-0.62/gallon
Observe the Speed Limit
While each vehicle reaches its optimal fuel economy at a different speed, gas mileage usually decreases rapidly at speeds above 60 mph.
You can assume that each 5 mph you drive over 60 mph is like paying an additional $0.24/gallon for gas.
Fuel Economy Benefit: 7-23%
Equivalent Savings: $0.13-0.43/gallon
Remove Excess Weight
Avoid keeping unnecessary items in your vehicle, especially heavy ones. An extra 100 pounds in your vehicle could reduce your MPG by up to 2%. The reduction is based on the percentage of extra weight relative to the vehicle's weight and affects smaller vehicles more than larger ones.
Fuel Economy Benefit: 1-2%/100 lbs
Equivalent Savings: $0.02-0.04/gallon
Keep Your Engine Properly Tuned
Fixing a car that is noticeably out of tune or has failed an emissions test can improve its gas mileage by an average of 4%, though results vary based on the kind of repair and how well it is done.
Fixing a serious maintenance problem, such as a faulty oxygen sensor, can improve your mileage by as much as 40%.
Fuel Economy Benefit: 4%
Equivalent Savings: $0.08/gallon
Check & Replace Air Filters Regularly
Replacing a clogged air filter can improve your car's gas mileage by as much as 10%. Your car's air filter keeps impurities from damaging the inside of your engine. Not only will replacing a dirty air filter save gas, it will protect your engine.
Fuel Economy Benefit: up to 10%
Equivalent Savings: up to $0.19/gallon
Keep Tires Properly Inflated
You can improve your gas mileage by around 3.3% by keeping your tires inflated to the proper pressure. Under-inflated tires can lower gas mileage by 0.3% for every 1 psi drop in pressure of all four tires.
Fuel Economy Benefit: up to 3%
Equivalent Savings: up to $0.06/gallon
Use the Recommended Grade of Motor Oil
You can improve your gas mileage by 1-2% 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%. Using 5W-30 in an engine designed for 5W-20 can lower your gas mileage by 1-1.5%. 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 Savings: $0.02-0.04/gallon
Note:based on fuel price of $1.90