Here are the official guidelines for Fuelperks!:
fuelperks! are calculated after all restricted items, all store discounts, and all coupons (including manufacturer coupons) have been subtracted from the order. fuelperks! are not earned on tax-exempt or MSP-SRP reward cards. fuelperks! can only be earned in participating Winn-Dixie locations. fuelperks! may not be accumulated in some liquor locations – see store for details. fuelperks! can only be redeemed at participating fuel stations.
So major couponers... are you still using fuelperks!?
I have been asking for MONTHS if it is calculated before or after coupons... If you are saving 70%, you aren't getting the same fuelperks! that your neighbor is for buying the exact same things... even though the manufacturer is reimbursing them FULL value + $.08 per coupon.