Thanks again pqflyer!! ^ !! I just signed up for the speedpass promotion @.... http://www.speedpass.com/promo/summer2005.jsp I did the math...

$2.50 base price per gallon (assumed)
- .05 speedpass discount
2.45
- .15 6.25% discount with Discover (see my scheme)
2.30 price you pay per gallon @ Exxon/Mobil based on $2.50 per gallon. Thats a HUGE Savings!.... 20 cents per gallon! Just think if you doubled the reward with Discover! The price you pay at the pump is of course more since the Discover Cash Back Reward must be accumulated to at least $20... but in the long run the math still works.

So as long as Exxon/Mobil is no more than 5 cents additional per gallon than the competition, it will always be a great deal. My neighbor is a retired manager for Chevron Gas (the corporate Offices), he said that Exxon/Mobil is of great quality (second to Chevron of course)

Uh oh.... You have to activate the Speedpass by Aug. 31. I would assume that means to use it, and to get one, you have to get it mailed to you which will probably take some time. I don't think you can get one at the actual gas station instantly.