Actually that is not quite correct - if you look at my Credit Card comparison table

http://www.andrewcram.com/frequentflyerCC.html

at the cashback card section you will see that the Perfect Card has a monthly cashback limit on Gas purchases of $15. The Chase Cash Plus card may be a better bet because it doesn't appear to have the same sort of limit and has a higher non-promotional cashback on Gas on an ongoing basis.

Also - you should be aware that the site you Reference - rewardscards.com - only displays information about cards that it receives a commission from applications through. Given the small amount of banks that provide this commission it is highly likely that the recommendations are not impartial and the cards may not really be the best available. (My comparison table lists all cards I know of or have had suggested with no regard to whether or not there is a commission program so I believe it is more impartial - still it doesn't cover every card on the market so I can't claim it is perfect either).

Edit - I just realized that the site you reference is your own, it is usually polite to mention that you are plugging your own site.

A