You cannot do anything to dramatically decrease your gas mileage. However, if you practice good driving habits like gentle stops and starts and gradual acceleration, you can conserve gas.
No; friction decreases gas mileage.
I'm not sure about 40% but it WILL reduce gas mileage I'm not sure about 40% but it will for sure reduce your gas mileage. 40% does extremely high for just one O2 sensor
It has no effect on fuel mileage. It's only purpose is to help reduce emissions.
Yes
Yes it can reduce gas mileage. There are usually two kinds of faults with FPR that reduce gas mileage. 1. Excessive fuel pressure. 2. Fuel leaking through vacum. Both these faults result in bad gas mileage.
Anywhere from 16 to 19 mpg.
Open Travel Info offers a list of 19 tips for reducing gas mileage. It includes information about how to brake, shift, and limit speeds to reduce gas mileage.
Most certainly. The amount they reduce mileage depends on how aerodynamic the one you are using is and the vehicle you are driving.
43.28%
Yes, by up to 18%
Brands such as NGK, and Bosh both make plugs that are said to help gas mileage.
False