bad mpg cavalier 2.2L
Hello everyone I have a 1991 cavalier 4 cylinder 2.2L but its been getting real bad mpg about 17 to 19 on average I've changed the spark plugs, air filter, tire pressure is good and I've added fuel injector cleaner. I even drive like an old lady and that didn't help bring up my mpg. I cant think of anything else that could be causing bad mpg Amy ideas?
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