For drivers across the Prairie State, the act of filling up a gas tank has become a weekly exercise in financial dread. With Illinois consistently ranking among the states with the highest fuel costs in the nation—driven largely by some of the steepest state fuel taxes in the country—every single cent saved at the pump represents a tangible victory for the household budget.
While wholesale prices fluctuate based on global markets, a new targeted promotion is offering a predictable way to lower those costs. Amazon Prime members in Illinois can now learn how to save 20 cents per gallon on gas in Illinois every Friday through a partnership with the rewards platform Earnify.
consept of rising gas prices money dollars in opened car lid
The initiative, branded as “Fuel Up Fridays,” provides a recurring discount that effectively offsets a portion of the cost for those already paying for an Amazon Prime subscription. Rather than a traditional rebate or a mail-in offer, the discount is integrated through a mobile application, allowing users to apply the savings in real-time at the pump.
The program is designed to run through May 29, 2026, providing a long-term window for commuters and long-distance drivers to plan their fueling schedules around the Friday window.
How the Fuel Up Friday Discount Works
The discount is not automatically applied to a credit card or a Prime account; it requires a bridge between Amazon’s membership ecosystem and a third-party rewards aggregator. To access the savings, users must download and utilize the Earnify app.
Once the app is installed, the user must link their active Amazon Prime account to the Earnify profile. This verification step confirms eligibility for the “Prime-only” portion of the discount. The 20-cent reduction is actually a “stacked” total, meaning it combines several smaller reward layers—including base rewards and membership-specific bonuses—to reach the final 20-cent per gallon figure.
Shocked by Gas Prices
Because the discount is only available once per Friday, the strategy requires a shift in habit. Drivers who typically fill up on weekends or mid-week may find it beneficial to adjust their routine to ensure they hit the pump on Friday to maximize the benefit.
Eligibility and Participating Stations
The offer is not universal across all fuel retailers in Illinois. To receive the discount, drivers must visit participating locations of specific brands. The current partnership covers the following networks:
- BP
- Amoco
- ampm
- Thorntons
not every single station under these banners may participate in the Earnify program. Users are encouraged to check the “participating locations” map within the app before arriving at the station to avoid the frustration of a non-compatible pump.
| Feature | Detail |
|---|---|
| Discount Amount | 20 cents per gallon |
| Frequency | Every Friday (once per week) |
| Requirement | Amazon Prime Membership + Earnify App |
| Participating Brands | BP, Amoco, ampm, Thorntons |
| Expiration Date | May 29, 2026 |
The Impact of Fuel Costs in Illinois
To understand why a 20-cent discount is significant, one must look at the broader economic landscape of Illinois fuel pricing. Illinois often sees prices significantly higher than the national average due to the State of Illinois fuel tax, which is among the highest in the United States.
For a driver with a 15-gallon tank, a 20-cent discount saves $3.00 per fill-up. While that may seem modest on a single visit, the cumulative effect over the course of a year—assuming the program remains active through 2026—can result in savings of over $150. In an environment where grocery and utility costs are also rising, these marginal gains provide a small but necessary buffer for the average consumer.
Potential Constraints and Limitations
While the program offers a clear benefit, You’ll see a few constraints that users should keep in mind to ensure the discount applies correctly:
- The “Once-Per-Friday” Rule: The system is hard-coded to allow only one discounted transaction every Friday. Attempting to fill multiple vehicles under one account on the same day will likely result in the second vehicle paying full price.
- App Connectivity: Since the discount relies on the Earnify app, a dead phone battery or a lack of cellular service at the pump can prevent the discount from being applied.
- Account Linking: The Amazon Prime account must be active and correctly linked. If a membership lapses, the “stacked” portion of the discount associated with Prime will disappear.
Disclaimer: This article is for informational purposes only. Terms and conditions for third-party apps and corporate promotions are subject to change by the providers.
As the 2025-2026 period progresses, consumers should continue to monitor their Prime membership benefits and the Earnify app for any updates to participating locations or changes in the discount structure. The next scheduled check for this promotion’s terms is typically handled through Amazon’s quarterly updates to Prime member deals.
Have you successfully used the Earnify app to lower your fuel costs this week? Share your experience in the comments or let us know if you’ve found other ways to fight the climb at the pump.
