Don't bother with natural gas. Natural gas is more inefficient than pump gas. Our country has a worse natural gas shortage than we do with pump gas. Thus, you will pay even more to get even less.
Drive your current car efficiently. Keep it in good tune. Do only driving that you "need" to do, not "want" to do. Meanwhile, save what you can for a more efficient car. That is the best you can do.
Mr. Spindlelegs
