Repair shop tells me the front brakes are at 9%. At the same time, they say it's not urgent and can be dealt with on my next scheduled service. What does 9% really mean and how concerned should I be? Thank you.
 
Answer Ranks
This week's top 10
| 1 globalhelper | 6 FREDDY BLUE |
| 2 pushrod | 7 gearhead89 |
| 3 ziptie12 | 8 tdtoolbox |
| 4 ChevyASE | 9 wenyan |
| 5 csubak30 | 10 ebans777 |