Most warranties, at least the ones that I feel are worth the money, require that you are within the original factory warranty in order to extended it. For us that's 36months or 36,000 miles. You're way past the 36months so it doesn't matter what your mileage is at this point. I just fell off my extended 6-year; 60,000 mile GMPP warranty. I could have extended it some more but GMPP requires that you have at least one month or 1,000 miles left. I started to receive in the mail offers of another warranty but I decided to take the chance of no major repairs in the near future. :ugh