Why is my 2003 mustang gt v8 manual wasting so much gas? It is literally wasting about 5-10 mpg is this normal.

Asked by Jun 19, 2014 at 07:15 PM about the 2003 Ford Mustang GT Convertible

Question type: General

1 Answer

254,635

You should be around 20MPH avg, what is yours? Check the spark plugs? CEL on?

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