After testing these products in six vehicles over four months, the experts at Auto One have found the following products provide the best fuel economy increases.*

Fuel Saving Products		Increase
	Engine Tuning Products Products: Superchips Flashpaq and Cortex Superchips engine tuners modify your engine's settings which maximizes your engine's power and increases fuel economy.	up to 10%
	Air Filters Products: K&N Air Filters A K&N air filter increases the amount of air to your engine which makes it more efficient saving fuel.	up to 10%
	Tonneau Covers Products: Extang, Downey, LeBra, Rugged Liner, Access, Advantage and more Realize increased fuel savings by reducing the air drag on your open truck bed with a new tonneau cover.	up to 10%
	Cruise Control Your vehicle uses less fuel when it stays at a constant speed. A cruise control will increase your fuel economy by preventing repetitive speeding up and slowing down.	up to 7%
	Exhaust Systems Products: Edlebrock, Borla, Aero-Turbine These performance exhaust systems dramatically reduce the exhaust backpressure and increase your fuel economy.	up to 15%

These products can help increase fuel economy, but their potential has yet to be measured.

Other Products
	Cool Air Intakes Products: K&N, AEM, and Aero Exhaust Engines need air to burn fuel. A cool air intake increases the amount of air to your engine making it more efficient which saves fuel.
	Window Tinting Products: Solar Gard Deflect more solar energy/heat from your vehicle, reduce your need for air conditioning and save fuel as you drive without the air condition on.
	Presidential Detailing Save fuel by increasing your vehicle's aerodynamics with a presidential detail and enjoy the look of an expertly cleaned vehicle.
	Windshield Glass Treatment Products: Aquapel A long-lasting glass treatment that makes it easier to clear ice, snow and even dirt from your windshield, increasing aerodynamics which increases fuel economy.
	GPS Navigation Units GPS Navigation Units show you the shortest distance from "a to b" allowing you to avoid extra miles and saving you fuel. Some GPS units will also show you the location of the gas station with the lowest fuel prices which saves you money at the pump.

Fuel economy is not additive (i.e., if you add three items with 10% improvement each you will not see a 30% increase).

In addition to the products shown here, we also suggest the following activities.

• Reduce your "jack-rabbit" starts
• Drive 60 miles per hour (mph) or less. Every five miles per hour over 60 costs you 20 to 30 extra cents per gallon.
• Keep your vehicle tuned and the tires properly inflated.
• Don't idle. You get 0 miles per gallon when idling.