How you accelerate is one of the factors that can affect your miles per gallon (MPG). Plan your trips so that you can avoid any road works, or areas in which there’s a great deal of stop-and-start driving.
Making sure that your fuel system and injectors are free of deposits is critical to maintaining fuel efficiency, ultimately saving you money! Deposits have been found to start forming in as few as 1,000 miles. Studies have shown that deposits can decrease your fuel efficiency by as much as 11%. To keep your fuel intake system clean, use STP® Fuel Treatment every 1000/1250 miles and clean your fuel injectors, using STP® Injector Cleaner every 3000 miles to keep your emissions low and reduce fuel consumption.
Make sure that the weight in your car is properly distributed. Don’t carry a lot of weight on top of your car, and if you do, be sure to use a carrier so that the weight will be distributed more evenly. Also, carry only basic emergency equipment and items you really need in your boot.
According to industry sources, underinflated tyres cut fuel economy by as much as two percent for each missing pound of pressure. If your tyres are underinflated, your engine will have to work harder to push your vehicle. Keep in mind that warm tyres can give an inaccurate reading, because heat build-up increases tyre pressure. Be sure to check your tyres' air pressure when they haven’t been driven for more than a mile. Make sure that your tyres are inflated in accordance with your owner’s manual—overinflating will result in a harder drive.