Ah, now I see. I know nothing about the area, but from Google it looks like it was 11 or 12 miles between exits, and she got off at 97th St. E. With two bars left she could definitely get back to the Sun City exit - even at 65mph! But we don't know how far she had to go after she got off I-75.
Monday morning quarterbacking is easy, but here's what I'd suggest for the next time:
- Go right now to Tony's table, print it out, and keep a copy in your glove compartment. (View image, and then print.)
- If you miss an exit like that, reset the trip mileage immediately (hold the TRIP button in for a second). Then you will know what you are up against when you finally do get off the freeway.
- Watch the bars, and remember what the trip mileage says the last time you lose a bar before you can stop.
When you finally do get off the freeway, take a deep breath and relax, then think it through like this (numbers are only examples): I've got 11 miles back to Sun City, then 4 miles home from there. I want to keep a 5 mile margin, so I need 20 miles. I dropped to 2 bars just a mile ago, so Tony's chart says I can go 22 or 23 miles if I hold my speed down to 60. That gives me a 7 mile margin. I can do this!