Get 10 mpg more from your car
...and about 20 horsepower too!I have made few modifications to my car that gave me 10 mpg better mileage and more horsepower. The modifications have improved the combustion efficiency of the vehicle. They lower carbon output and they do not shorten the life of the engine. In fact, they will probably increase it. These improvements are very easy to do and you can do them one at a time.
By: jonstowe Source: type: instructable [date]
