I run intl 9200 with m-11, I get 9.8 miles at 65/70 with 10,000 or less. I wouldn't have anything, but this set-up. At least once a week I haul 18-24,000 lbs, for me the extra pay is worth it, fuel drops to about 8.2, 65/70. The comfort of having a real truck, with a sleeper, not a add on tin...