Offer your thoughts or opinion on the input financial query or topic using your financial background.

What is a good way to save money on car expenses?
Do your own oil change! If you are a hands-on person, you could also avoid the cost of the semi-annual oil change, by doing it yourself.  Edmunds.com has a great how-to to help you accomplish this.  Be prepared for dirty fingernails!  But savings, you will realize, as an oil change will run you anywhere from $20 - $200 (if you drive a European car and require a specialized filtre).