Fuel goes before tires almost every time. And your driver doesn't make any mistakes, even at 0/0 Strengths in an X201x, so don't worry about them being tired. Strategy "off" will be perfectly fine.
Course, the other problem is that the X201x goes through gas so quickly that your drivers won't have time to recover fully before their next stint. Even 10% will eventually get the drivers pitting every lap once the race starts getting on.