Gas Efficient Devices - Gas prices have continued to rise to unbelievable prices over the past couple of years. Now business entrepreneurs are offering a variety of gas saving devices. The controversy though is that some people believe they work while others are convinced they are nothing more than a scam. There are hundreds of such products out there available and that is appealing to consumers. Before you buy one of them you need to do your homework. You need to find out what other consumers have to say about it.