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Short answer, ALL of the convienences mentioned above reduce the fuel economy of a car, any electircal system you use will affect the fuel economy,to understand why we must know how these systems are powerd exactly, its not as as you think. The battery operates when you start the car, the moment the car is started the , the power to run the electric ...


Background This is a common issue with shim and bucket valve trains. As the valves are getting worn into the head a small groove is beat into the valve face after opening and closing so many times. As the valve pushes up into the head it takes up clearance between the cam lobe and the bucket which the cam lobe depresses to push the valve in and open it to ...


I drive a 2014 Civic EX coupe, automatic, and about a week ago turned the Econ button off... the icon light on the dash turned off. I bought the car several months ago and it didn't occur to me until now to try this. Performance has been about the same, but my mileage has actually INCREASED 3-4 MPG! Go figure.


Volumetric efficiency though directly related to fuel efficiency on paper, it is not a deciding factor in the real world fuel efficiency of the vehicle. There are other tons of parameters on the car which ultimately decide the fuel efficiency. Still , People and engine builders prefer to have a engine with higher V.E because the relationship with V.E and ...


If your driving is consistent, you could test it out by measuring your gas mileage, with shutting your vehicle off at lights, and not shutting it off. You would want to average at least 3 tanks of each to make sure there aren't any weird outliers (stuck in traffic, muggy weather). If you want an exact answer for your vehicle, you would need some way to ...


It gives you 6% less horsepower with 6% more fuel efficiency.

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