Hi there! I understand you're having trouble logging into the Fuel Rewards app because it's not accepting your saved password. Let's get this sorted out together.

First, just to clarify:
- Are you trying to log in on your Mac using a browser, or are you using a specific Fuel Rewards app on your Mac?
- When you say "saved password," are you referring to a password autofill from your browser or a password manager, or did you manually enter the password?

Knowing this will help me tailor the next steps.

In the meantime, a common cause of this issue is that the saved password might be outdated or incorrect due to a recent password change. Here’s what we can do step-by-step:

1. Try manually typing your password instead of using the saved password autofill, just to rule out autofill errors.

2. If manual entry still fails, you can reset your Fuel Rewards password:
- Visit the Fuel Rewards password reset page at https://www.fuelrewards.com/fuelrewards/password-remind-done.html
- Enter your email address to receive a password reset email.
- Follow the instructions in the email to set a new password.

3. After resetting your password, try logging in again using the new password.

4. If you use a browser on your Mac, clear your browser’s cache and saved login passwords for Fuel Rewards to avoid conflicts:
- In Safari: Go to Preferences > Passwords, find Fuel Rewards, and delete the saved password.
- Then, clear website data via Safari Preferences > Privacy > Manage Website Data.

5. Ensure your Mac has a stable internet connection, as intermittent connectivity can cause login issues.

If after these steps you're still unable to log in, let me know, and we can try some advanced fixes or check for any account-specific issues.

Are you okay to try these and let me know what happens?