Your Comment:Type your original comment here. Please don't copy & paste answers from other sites.
You must verify your email address before we can post your
comment. If you are a ThriftyFun user you will be prompted to
login. Or, use your Facebook account to login. We will not send
you spam or use your email for any other purpose.
Here's a nice article on the subject...
What's the difference between premium and regular gas?http://www.stra … umns/041008.html