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Details

Effect of Intake Air Filter Condition on Vehicle Fuel Economy.

DE2009948545

Publication Date	2008
Personal Author	Norman, K.; Huff, S.; West, B.
Page Count	40
Abstract	The study described in this report investigates the effect of one of these maintenance factors, air filter replacement, on vehicle performance and fuel economy. Past studies have indicated that replacing a clogged or dirty air filter can improve vehicle fuel economy. For example, Jaroszczyk, Wake, and Connor reported in 1993 that proper filtration systems make engines more fuel efficient; however, they gave no data or reference information to support this claim. The Organization for Economic Co-operation and Development claimed in a 1981 report based on earlier research by the Thornton Research Center that excessive pressure across a dirty air filter can cause a 115% increase in fuel consumption. In the Thornton study, six 1970-73 model year vehicles were tested using the Economic Commission for Europe hot-start driving cycle (ECE 15) to explore the fuel economy effects of deliberate malfunctions, defined as maintenance problems such as damaged spark plugs, poor idle mixture, improper idle speed, and restricted air cleaners. Of the six vehicles, only five were tested with restricted air filters, accomplished by masking the cross-sectional area of the air cleaner element.
Keywords	Vehicle Fuel Economy Intake air filter Air filter replacement Vehicle performance Maintenance Air filter Fuel efficiency Fuel economy Carburators Clogged air filters
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200919

Effect of Intake Air Filter Condition on Vehicle Fuel Economy.

Effect of Intake Air Filter Condition on Vehicle Fuel Economy.
DE2009948545

Publication Date	2008
Personal Author	Norman, K.; Huff, S.; West, B.
Page Count	40
Abstract	The study described in this report investigates the effect of one of these maintenance factors, air filter replacement, on vehicle performance and fuel economy. Past studies have indicated that replacing a clogged or dirty air filter can improve vehicle fuel economy. For example, Jaroszczyk, Wake, and Connor reported in 1993 that proper filtration systems make engines more fuel efficient; however, they gave no data or reference information to support this claim. The Organization for Economic Co-operation and Development claimed in a 1981 report based on earlier research by the Thornton Research Center that excessive pressure across a dirty air filter can cause a 115% increase in fuel consumption. In the Thornton study, six 1970-73 model year vehicles were tested using the Economic Commission for Europe hot-start driving cycle (ECE 15) to explore the fuel economy effects of deliberate malfunctions, defined as maintenance problems such as damaged spark plugs, poor idle mixture, improper idle speed, and restricted air cleaners. Of the six vehicles, only five were tested with restricted air filters, accomplished by masking the cross-sectional area of the air cleaner element.
Keywords	Vehicle Fuel Economy Intake air filter Air filter replacement Vehicle performance Maintenance Air filter Fuel efficiency Fuel economy Carburators Clogged air filters
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200919