Originally Posted By: Hokiefyd
Originally Posted By: addyguy
This doesn't make any sense - fuel economy HAS gone down - that's what this post is all about!
Fuel economy hasn't gone down:
http://www.nhtsa.gov/staticfiles/rulemaking/pdf/cafe/Oct2010_Summary_Report.pdf
Looking at passenger cars, which are the topic of this thread, you can see (on the 5th page of the PDF) that CAFE increased steadily through about 1988. Between 1988 and about 2000, it remained essentially flat, at around 28-29 mpg. Beginning in around 2000, it started to again steadily climb.
Those trends simply mirror the inflation-adjusted cost of gasoline, and the public's response to that cost with their automotive buying habits, not the efficiency of vehicles. The average fuel economy will always go up when people start buying small cars.
Fuel economy increased through 1988 because people responded to the second oil crisis which sent fuel costs sky high. They bought small cars.
Between 1988 and 2000, gas prices were relatively flat. The SUV craze kicked in.
Since 2000, gas prices have steadily climbed upward.