if you're off by 8 mph at 55 mph, you are off by about 14.5% (8 divided by 55).

so, if you are getting 15 mpg according to your odometer, you are really getting 17.2 mpg (15 times 1.145).

if you are getting 16 mpg according to your odometer, you are really getting 18.3 (16 times 1.145).

not quite as bad as you thought <img src="/forums/images/graemlins/kewl.gif" alt="" />

stan

1994 4x4 22RE W56 truck