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2002 Chevy Prizm rated 40mpg. Why am I only getting 32 mpg on highway?
i've filled 3 tanks, and i'm only getting 32 mpg. this is 95% highway, no A/C, windows up, tire air pressure at factory recommendations, etc.
So how come i'm getting 20% less than what factory says i should be getting? And how to fix it???