201139 - Call 4

Marc
Vernon
Virginia
A question about add-ons. Marc would like to improve his gas mileage. Do add-on products on late night TV wowork? No, they don't. Tom and Ray say any improvement they seem to give is likely a result of changed driving habits. Best way to improve mileage is to drive sane, avoid jackrabbit starts. etc. But, Marc is free to experiment and report back!