seashore, I'd printed out your directions from another thread, and we went to that station. Worked out fine, though hubby kept saying (as I took him on McCoy) "we're on this road to save 75 cents?"... I just said "yes". I might skip the toll-skipping in the future, but that gas station worked out well.
If you're taking the Greeneway to the airport (SR-417), your options are more limited.
The airport toll plaza on the 528 is now $1.00. Taking Seashore's bypass using McCoy Road, which is a frontage road running along the northside of the 528 between Tradeport and 436, bypasses that toll and thus saves a bit more now.
Easy enough and you're right there anyway if refilling the rental car at that 7-Eleven.
BobK/Orlando