Cars on US roads waste millions of barrels of oil because their dirty air filters make the engines work harder. Changing air filters regularly improves fuel efficiency up to 10% and can save 53 million barrels of oil. Honeywell's FRAM® air filters are engineered for greater air flow. That means better fuel efficiency. FRAM® also makes oil filters that can go twice as long between oil changes, reducing oil consumption. FRAM® oil, air, transmission and fuel filters keep engines operating at peak efficiency and deliver substantial fuel savings.