Well with the recent price hike of gas prices to near $4.50 in San Francisco, this gas saving gadget might save you money if you are driving like a maniac.
Now this new device is not like the ones that people had been given before to which your engine will be choked or limit the gasoline flow. This device serves as a warning indicator pointing towards how you are driving.
The way we drive is really a big factor towards how gasoline is consumed. With this indicator, you not only improve your driving skills but also conserve gasoline that is wasted due to improper driving.