On top of that, the additives used in gasoline are different in the summer than they are in the winter. When this occurs, the spark plugs fire later during the compression stroke than normal. There are a couple of things that could cause this to occur. It may be necessary for the mechanic to test drive the car to produce acceptable results and pinpoint the source of the problem. a far cry from the 23 MPG I have changed the plugs, used injector/valve cleaner and no improvement. . Poor gas mileage, especially a sudden drop in fuel efficiency, can be blamed on a number of issues. Over time, You could end up with vibrating of the engine compartment, shuddering, stalling of the engine, and difficult, rough idling. Sudden poor mileage and excessive rpm in Escape Hybrid Ford should not advertise on their sticker in the window that you will get 34 on the road and 24 in town, when in fact, I only get 22 on the road and 17 in town. Osuagwu Solomon is a certified mechanic with over a decade of experience in the mechanic garage, and he has over five years of experience in the writing industry. My ford only gets 18.5 miles to gallon gas! Not really gunning at all, no. If you step up to the 2.7L V6 EcoBoost engine the fuel rating drops to 19 miles per gallon in the city and 26 on the highway, which is still respectable for a V6 with 335 horsepower and 380 . Average fuel consumption is 13.33 litres per 100 kilometers, not what Ford indicates should be.The vehicle has consumed 312.59 litres of gasoline to go 2345 kilometers,. in 1 mile of driving it says i used 3 gallons. My ford only gets 18.5 miles to gallon gas!Is there anything I can do to get better gas miles !I have change spark plugs! Its most notable when driving during short trips. In some cases, you can clean the injectors, which saves you money over replacement. For more information on how we collect and use this information, please review our Privacy Policy. Combined MPG on Gas Only: 40. The EVAP canister is an integral part of your EVAP system, so you need to get yourself acquainted with the symptoms of a bad evap canister listed above to keep your vehicle eco-friendly and running at high efficiency.