I bought it when it came out, current miles are 70,704. I thought this cars are designed to be gas saver from 18-28 mpg. Every time I make oil change, on the gas tank always drop a bottle of STP Concentrated Fuel injector cleaner. Is it time to change the fuel injectors? Any ideas what may be.
is it normal mpg 17-20 Chevy Impala 06 LT V6?
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